Mathematics for IGCSE & O level - Percentages (Section 6 - No. 27)
How do you calculate the loss percentage?
(Selling Price - Cost Price) / Selling Price * 100
(Cost Price - Selling Price) / Cost Price * 100
(Selling Price - Cost Price) / Cost Price * 100
(Cost Price - Selling Price) / Cost Price * 100
解释
Loss percentage = (Loss / Cost Price) * 100 or ((Cost Price - Selling Price) / Cost Price) * 100