-12.58% is the change from 930 to 813
Calculation steps:
[( 813 - 930 ) ÷ 930] x 100 = -12.58%
Formula
Percentage change = [(813 - 930) / 930] x 100
Subtract the new number by the original number
813 - 930 = -117
-117 ÷ 930 = -0.12580645161290321
-0.12580645161290321 x 100 = -12.58%