-98.39% is the change from 932 to 15
Calculation steps:
[( 15 - 932 ) ÷ 932] x 100 = -98.39%
Formula
Percentage change = [(15 - 932) / 932] x 100
Subtract the new number by the original number
15 - 932 = -917
-917 ÷ 932 = -0.9839055793991416
-0.9839055793991416 x 100 = -98.39%