Question

find the percent of mark up.$33.00 to $45.00

Answer 1

The percent markup is the percent increase from the original price (that a store buys at) to the new price (the store sells at.)
Percent increase is calculated as follows:
[(new price - old price)/old price] x 100
That is, subtract the lower (buying) price from the higher (selling price.) Divide that difference by the lower price, then multiply by 100.