-70.54% is the change from 577 to 170
Calculation steps:
[( 170 - 577 ) ÷ 577] x 100 = -70.54%
Formula
Percentage change = [(170 - 577) / 577] x 100
Subtract the new number by the original number
170 - 577 = -407
-407 ÷ 577 = -0.7053726169844021
-0.7053726169844021 x 100 = -70.54%