-65.7% is the change from 207 to 71
Calculation steps:
[( 71 - 207 ) ÷ 207] x 100 = -65.7%
Formula
Percentage change = [(71 - 207) / 207] x 100
Subtract the new number by the original number
71 - 207 = -136
-136 ÷ 207 = -0.6570048309178744
-0.6570048309178744 x 100 = -65.7%