-20.7% is the change from 913 to 724
Calculation steps:
[( 724 - 913 ) ÷ 913] x 100 = -20.7%
Formula
Percentage change = [(724 - 913) / 913] x 100
Subtract the new number by the original number
724 - 913 = -189
-189 ÷ 913 = -0.20700985761226726
-0.20700985761226726 x 100 = -20.7%