-50.05% is the change from 913 to 456
Calculation steps:
[( 456 - 913 ) ÷ 913] x 100 = -50.05%
Formula
Percentage change = [(456 - 913) / 913] x 100
Subtract the new number by the original number
456 - 913 = -457
-457 ÷ 913 = -0.5005476451259584
-0.5005476451259584 x 100 = -50.05%