-96.84% is the change from 475 to 15
Calculation steps:
[( 15 - 475 ) ÷ 475] x 100 = -96.84%
Formula
Percentage change = [(15 - 475) / 475] x 100
Subtract the new number by the original number
15 - 475 = -460
-460 ÷ 475 = -0.968421052631579
-0.968421052631579 x 100 = -96.84%