-50.05% is the change from 915 to 457
Calculation steps:
[( 457 - 915 ) ÷ 915] x 100 = -50.05%
Formula
Percentage change = [(457 - 915) / 915] x 100
Subtract the new number by the original number
457 - 915 = -458
-458 ÷ 915 = -0.5005464480874317
-0.5005464480874317 x 100 = -50.05%