-71.33% is the change from 579 to 166
Calculation steps:
[( 166 - 579 ) ÷ 579] x 100 = -71.33%
Formula
Percentage change = [(166 - 579) / 579] x 100
Subtract the new number by the original number
166 - 579 = -413
-413 ÷ 579 = -0.7132987910189983
-0.7132987910189983 x 100 = -71.33%