-71.16% is the change from 593 to 171
Calculation steps:
[( 171 - 593 ) ÷ 593] x 100 = -71.16%
Formula
Percentage change = [(171 - 593) / 593] x 100
Subtract the new number by the original number
171 - 593 = -422
-422 ÷ 593 = -0.7116357504215851
-0.7116357504215851 x 100 = -71.16%