Answer:
Explanation:
Now £400
£400=75%, right? (100%-25%=75%)
£400 x 1.25% (original value with 25% more to make it back up to 100 percent)
£400 x 1.25%=£500
1600
Do 400 ÷ 0.25 = 1600
0.25 because of the discount
Check by doing 1600 X 0.25 and it should be 400 which it is
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