-49.18% is the change from 915 to 465
Calculation steps:
[( 465 - 915 ) ÷ 915] x 100 = -49.18%
Formula
Percentage change = [(465 - 915) / 915] x 100
Subtract the new number by the original number
465 - 915 = -450
-450 ÷ 915 = -0.4918032786885246
-0.4918032786885246 x 100 = -49.18%