-13.69% is the change from 942 to 813
Calculation steps:
[( 813 - 942 ) ÷ 942] x 100 = -13.69%
Formula
Percentage change = [(813 - 942) / 942] x 100
Subtract the new number by the original number
813 - 942 = -129
-129 ÷ 942 = -0.13694267515923567
-0.13694267515923567 x 100 = -13.69%