-86.96% is the change from 928 to 121
Calculation steps:
[( 121 - 928 ) ÷ 928] x 100 = -86.96%
Formula
Percentage change = [(121 - 928) / 928] x 100
Subtract the new number by the original number
121 - 928 = -807
-807 ÷ 928 = -0.8696120689655172
-0.8696120689655172 x 100 = -86.96%