Mathematics for IGCSE & O level - Percentages (Section 2 - No. 39)

Which expression correctly calculates the sale price after a 15% discount on an item originally priced at P?

P + 0.15

P - 0.15

P * 0.15

P * 0.85

A 15% discount means the sale price is 85% (100% - 15%) of the original price, hence P * 0.85.