-57.88% is the change from 406 to 171
Calculation steps:
[( 171 - 406 ) ÷ 406] x 100 = -57.88%
Formula
Percentage change = [(171 - 406) / 406] x 100
Subtract the new number by the original number
171 - 406 = -235
-235 ÷ 406 = -0.5788177339901478
-0.5788177339901478 x 100 = -57.88%