problem:
Standard price: € 220,- reduction in summer sale 28%.
New price of the item?
answer:
1. step: given/wanted
given: the base value (old price) = $ 220 the rate = 72 % (100% – 28%)
wanted: part (new price)
2. step formula:
part = base * rate : 100
part = 220 * 72 : 100
part = $ 158.40 (new price)
The new price for the item is $ 158.40.