-69.4% is the change from 585 to 179
Calculation steps:
[( 179 - 585 ) ÷ 585] x 100 = -69.4%
Formula
Percentage change = [(179 - 585) / 585] x 100
Subtract the new number by the original number
179 - 585 = -406
-406 ÷ 585 = -0.694017094017094
-0.694017094017094 x 100 = -69.4%