-16.47% is the change from 85 to 71
Calculation steps:
[( 71 - 85 ) ÷ 85] x 100 = -16.47%
Formula
Percentage change = [(71 - 85) / 85] x 100
Subtract the new number by the original number
71 - 85 = -14
-14 ÷ 85 = -0.16470588235294117
-0.16470588235294117 x 100 = -16.47%