Question

To increase an amount by 5.4% what single multiplyer would you use

Answer 1

You would multiply the amount by 1.54. Hope this helped :3

Answer 2

If the multiplier was 1.54, then you would get more then 1 and a half times your original amount.

Do 100% + 5.4% to get 105.4%.
Turn this into a whole number (divide by 100) to get 1.054 as your multiplier.
1.054