-64.91% is the change from 171 to 60
Calculation steps:
[( 60 - 171 ) ÷ 171] x 100 = -64.91%
Formula
Percentage change = [(60 - 171) / 171] x 100
Subtract the new number by the original number
60 - 171 = -111
-111 ÷ 171 = -0.6491228070175439
-0.6491228070175439 x 100 = -64.91%