-86.98% is the change from 315 to 41
Calculation steps:
[( 41 - 315 ) ÷ 315] x 100 = -86.98%
Formula
Percentage change = [(41 - 315) / 315] x 100
Subtract the new number by the original number
41 - 315 = -274
-274 ÷ 315 = -0.8698412698412699
-0.8698412698412699 x 100 = -86.98%