-77.14% is the change from 315 to 72
Calculation steps:
[( 72 - 315 ) ÷ 315] x 100 = -77.14%
Formula
Percentage change = [(72 - 315) / 315] x 100
Subtract the new number by the original number
72 - 315 = -243
-243 ÷ 315 = -0.7714285714285715
-0.7714285714285715 x 100 = -77.14%