-49.95% is the change from 915 to 458
Calculation steps:
[( 458 - 915 ) ÷ 915] x 100 = -49.95%
Formula
Percentage change = [(458 - 915) / 915] x 100
Subtract the new number by the original number
458 - 915 = -457
-457 ÷ 915 = -0.4994535519125683
-0.4994535519125683 x 100 = -49.95%