-72.15% is the change from 596 to 166
Calculation steps:
[( 166 - 596 ) ÷ 596] x 100 = -72.15%
Formula
Percentage change = [(166 - 596) / 596] x 100
Subtract the new number by the original number
166 - 596 = -430
-430 ÷ 596 = -0.7214765100671141
-0.7214765100671141 x 100 = -72.15%