-5.65% is the change from 991 to 935
Calculation steps:
[( 935 - 991 ) ÷ 991] x 100 = -5.65%
Formula
Percentage change = [(935 - 991) / 991] x 100
Subtract the new number by the original number
935 - 991 = -56
-56 ÷ 991 = -0.056508577194752774
-0.056508577194752774 x 100 = -5.65%