-45.02% is the change from 913 to 502
Calculation steps:
[( 502 - 913 ) ÷ 913] x 100 = -45.02%
Formula
Percentage change = [(502 - 913) / 913] x 100
Subtract the new number by the original number
502 - 913 = -411
-411 ÷ 913 = -0.45016429353778753
-0.45016429353778753 x 100 = -45.02%