-75.6% is the change from 291 to 71
Calculation steps:
[( 71 - 291 ) ÷ 291] x 100 = -75.6%
Formula
Percentage change = [(71 - 291) / 291] x 100
Subtract the new number by the original number
71 - 291 = -220
-220 ÷ 291 = -0.7560137457044673
-0.7560137457044673 x 100 = -75.6%