Ethan orders 5 boxes of paper clips and each box cost £15.40.
£15.40 x 5 = £77
Ethan gets a 6.5% discount.
6.5% of £77 is simple to find us X as representation of 6.5% (we want to know how much is that in pounds)
X/6.5% = 77/100%
X (100) = 77 (6.5)
X (100) = 500.5
X = 500.5/100
X = £5.01
Ethan got a discount of £5.01