-52.03% is the change from 913 to 438
Calculation steps:
[( 438 - 913 ) ÷ 913] x 100 = -52.03%
Formula
Percentage change = [(438 - 913) / 913] x 100
Subtract the new number by the original number
438 - 913 = -475
-475 ÷ 913 = -0.52026286966046
-0.52026286966046 x 100 = -52.03%