-81.65% is the change from 387 to 71
Calculation steps:
[( 71 - 387 ) ÷ 387] x 100 = -81.65%
Formula
Percentage change = [(71 - 387) / 387] x 100
Subtract the new number by the original number
71 - 387 = -316
-316 ÷ 387 = -0.8165374677002584
-0.8165374677002584 x 100 = -81.65%