Mareea wants to buy a top that usually costs $60
The shop has a 20% off sale.
How much will Mareea save?
How much will she pay for the top?
20% is one fifth so Mareea saves one fifth of $60 which is $12.
80% is one fifth off so Mareea pays $60 - $12 = $48.
Pose another question such as:
Mareea wants to buy a “something” that usually costs $60
The shop has a 35% off sale.
How much will Mareea save?
How much will she pay for the something?