Elastic bands are sold in packs of 100. Each pack costs £1.59
The table below shows the discount offered for large orders.
Total order Discount
£20 - £34.99 2.5%
£35 - £49.99 3%
£50 and above
3.5%
Nadia orders 15 packs of elastic bands.

Work out the amount of discount Nadia gets.
15x1.59=£23.85
Nadia will get a 2.5% discount

But that only gives me 2 marks what am I missing to get the three marks I keep getting 0.59 discount but that's saying incorrect ​