-12.39% is the change from 928 to 813
Calculation steps:
[( 813 - 928 ) ÷ 928] x 100 = -12.39%
Formula
Percentage change = [(813 - 928) / 928] x 100
Subtract the new number by the original number
813 - 928 = -115
-115 ÷ 928 = -0.12392241379310345
-0.12392241379310345 x 100 = -12.39%