If 3300 equals 4.5 percent what is the price of 100%

The amount of energy it takes to lift a box might be a function of which of the following

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

This is different from the first one can someone me