-71.58% is the change from 584 to 166
Calculation steps:
[( 166 - 584 ) ÷ 584] x 100 = -71.58%
Formula
Percentage change = [(166 - 584) / 584] x 100
Subtract the new number by the original number
166 - 584 = -418
-418 ÷ 584 = -0.7157534246575342
-0.7157534246575342 x 100 = -71.58%