-60.05% is the change from 428 to 171
Calculation steps:
[( 171 - 428 ) ÷ 428] x 100 = -60.05%
Formula
Percentage change = [(171 - 428) / 428] x 100
Subtract the new number by the original number
171 - 428 = -257
-257 ÷ 428 = -0.6004672897196262
-0.6004672897196262 x 100 = -60.05%