-50.93% is the change from 913 to 448
Calculation steps:
[( 448 - 913 ) ÷ 913] x 100 = -50.93%
Formula
Percentage change = [(448 - 913) / 913] x 100
Subtract the new number by the original number
448 - 913 = -465
-465 ÷ 913 = -0.5093099671412924
-0.5093099671412924 x 100 = -50.93%