-61.99% is the change from 171 to 65
Calculation steps:
[( 65 - 171 ) ÷ 171] x 100 = -61.99%
Formula
Percentage change = [(65 - 171) / 171] x 100
Subtract the new number by the original number
65 - 171 = -106
-106 ÷ 171 = -0.6198830409356725
-0.6198830409356725 x 100 = -61.99%