-50.16% is the change from 913 to 455
Calculation steps:
[( 455 - 913 ) ÷ 913] x 100 = -50.16%
Formula
Percentage change = [(455 - 913) / 913] x 100
Subtract the new number by the original number
455 - 913 = -458
-458 ÷ 913 = -0.5016429353778752
-0.5016429353778752 x 100 = -50.16%