-86.35% is the change from 315 to 43
Calculation steps:
[( 43 - 315 ) ÷ 315] x 100 = -86.35%
Formula
Percentage change = [(43 - 315) / 315] x 100
Subtract the new number by the original number
43 - 315 = -272
-272 ÷ 315 = -0.8634920634920635
-0.8634920634920635 x 100 = -86.35%