-54.32% is the change from 915 to 418
Calculation steps:
[( 418 - 915 ) ÷ 915] x 100 = -54.32%
Formula
Percentage change = [(418 - 915) / 915] x 100
Subtract the new number by the original number
418 - 915 = -497
-497 ÷ 915 = -0.5431693989071038
-0.5431693989071038 x 100 = -54.32%