What can happen is a person was charge with stealing money from a cash register at work? amount was under $200, but company says $450?

Oh absolutely.   $200 to $450 is a big difference.  Was the person videotaped? That could help uncover the true amount of damages.  Restitution in the form of a pay plan back to the store is separate and apart from any jail time (that is a government charge).

Hope this first offender won't do it again. 

Here are the laws on stealing:

Section 30. (1) Whoever steals, or with intent to defraud obtains by a false pretence, or whoever unlawfully, and with intent to steal or embezzle, converts, or secretes with intent to convert, the property of another as defined in this section, whether such property is or is not in his possession at the time of such conversion or secreting, shall be guilty of larceny, and shall, if the property stolen is a firearm, as defined in section one hundred and twenty-one of chapter one hundred and forty, or, if the value of the property stolen exceeds two hundred and fifty dollars, be punished by imprisonment in the state prison for not more than five years, or by a fine of not more than twenty-five thousand dollars and imprisonment in jail for not more than two years; or, if the value of the property stolen, other than a firearm as so defined, does not exceed two hundred and fifty dollars, shall be punished by imprisonment in jail for not more than one year or by a fine of not more than three hundred dollars; or, if the property was stolen from the conveyance of a common carrier or of a person carrying on an express business, shall be punished for the first offence by imprisonment for not less than six months nor more than two and one half years, or by a fine of not less than fifty nor more than six hundred dollars, or both, and for a subsequent offence, by imprisonment for not less than eighteen months nor more than two and one half years, or by a fine of not less than one hundred and fifty nor more than six hundred dollars, or both.

(2) The term “property”, as used in the section, shall include money, personal chattels, a bank note, bond, promissory note, bill of exchange or other bill, order or certificate, a book of accounts for or concerning money or goods due or to become due or to be delivered, a deed or writing containing a conveyance of land, any valuable contract in force, a receipt, release or defeasance, a writ, process, certificate of title or duplicate certificate issued under chapter one hundred and eighty-five, a public record, anything which is of the realty or is annexed thereto, a security deposit received pursuant to section fifteen B of chapter one hundred and eighty-six, electronically processed or stored data, either tangible or intangible, data while in transit, telecommunications services, and any domesticated animal, including dogs, or a beast or bird which is ordinarily kept in confinement.

(3) The stealing of real property may be a larceny from one or more tenants, sole, joint or in common, in fee, for life or years, at will or sufferance, mortgagors or mortgagees, in possession of the same, or who may have an action of tort against the offender for trespass upon the property, but not from one having only the use or custody thereof. The larceny may be from a wife in possession, if she is authorized by law to hold such property as if sole, otherwise her occupation may be the possession of the husband. If such property which was of a person deceased is stolen, it may be a larceny from any one or more heirs, devisees, reversioners, remaindermen or others, who have a right upon such deceased to take possession, but not having entered, as it would be after entry. The larceny may be from a person whose name is unknown, if it would be such if the property stolen were personal, and may be committed by those who have only the use or custody of the property, but not by a person against whom no action of tort could be maintained for acts like those constituting the larceny.

(4) Whoever steals, or with intent to defraud obtains by a false pretense, or whoever unlawfully, and with intent to steal or embezzle, converts, secretes, unlawfully takes, carries away, conceals or copies with intent to convert any trade secret of another, regardless of value, whether such trade secret is or is not in his possession at the time of such conversion or secreting, shall be guilty of larceny, and shall be punished by imprisonment in the state prison for not more than five years, or by a fine of not more than twenty-five thousand dollars and imprisonment in jail for not more than two years. The term “trade secret” as used in this paragraph means and includes anything tangible or intangible or electronically kept or stored, which constitutes, represents, evidences or records a secret scientific, technical, merchandising, production or management information, design, process, procedure, formula, invention or improvement.

(5) Whoever steals or with intent to defraud obtains by a false pretense, or whoever unlawfully, and with intent to steal or embezzle, converts, or secretes with intent to convert, the property of another, sixty years of age or older, or of a person with a disability as defined in section thirteen K of chapter two hundred and sixty-five, whether such property is or is not in his possession at the time of such conversion or secreting, shall be guilty of larceny, and shall, if the value of the property exceeds two hundred and fifty dollars, be punished by imprisonment in the state prison for not more than ten years or in the house of correction for not more than two and one-half years, or by a fine of not more than fifty thousand dollars or by both such fine and imprisonment; or if the value of the property does not exceed two hundred and fifty dollars, shall be punished by imprisonment in the house of correction for not more than two and one-half years or by a fine of not more than one thousand dollars or by both such fine and imprisonment. The court may order, regardless of the value of the property, restitution to be paid to the victim commensurate with the value of the property.

Section 25. (a) Whoever commits larceny by stealing from the person of a person sixty-five years or older shall be punished by imprisonment in the state prison for not more than five years or in jail for not more than two and one-half years.

Whoever, after having been convicted of said crime commits a second or subsequent such crime, shall be punished by imprisonment for not less than two years. Said sentence shall not be reduced until one year of said sentence has been served nor shall the person convicted be eligible for probation, parole, furlough, work release or receive any deduction from his sentence for good conduct until he shall have served one year of such sentence; provided, however, that the commissioner of correction may, on the recommendation of the warden, superintendent, or other person in charge of a correctional institution, or the administrator of a county correctional institution, grant to said offender a temporary release in the custody of an officer of such institution for the following purposes only: to attend the funeral of next of kin or spouse; to visit a critically ill close relative or spouse; or to obtain emergency medical services unavailable at said institution. The provisions of section eighty-seven of chapter two hundred and seventy-six relating to the power of the court to place certain offenders on probation shall not apply to any person seventeen years of age or over charged with a violation of this subsection.

(b) Whoever commits larceny by stealing from the person of another shall be punished by imprisonment in the state prison for not more than five years or in jail for not more than two and one-half years.

Section 20. Whoever steals in a building, ship, vessel or railroad car shall be punished by imprisonment in the state prison for not more than five years or by a fine of not more than five hundred dollars or by imprisonment in jail for not more than two years