Question

Increase £16470.45 by 3.5%

Answer 1

Try this:
1. if to increase by 3.5%, then 16470.45 is 100% and new number is 103.5%; it means 1.035 times;
2. according to the previous issue result is 16470.45*1.035=17046.91575.
answer: 17046.91575