-19.93% is the change from 913 to 731
Calculation steps:
[( 731 - 913 ) ÷ 913] x 100 = -19.93%
Formula
Percentage change = [(731 - 913) / 913] x 100
Subtract the new number by the original number
731 - 913 = -182
-182 ÷ 913 = -0.19934282584884994
-0.19934282584884994 x 100 = -19.93%