-71.52% is the change from 597 to 170
Calculation steps:
[( 170 - 597 ) ÷ 597] x 100 = -71.52%
Formula
Percentage change = [(170 - 597) / 597] x 100
Subtract the new number by the original number
170 - 597 = -427
-427 ÷ 597 = -0.7152428810720268
-0.7152428810720268 x 100 = -71.52%