-63.25% is the change from 585 to 215
Calculation steps:
[( 215 - 585 ) ÷ 585] x 100 = -63.25%
Formula
Percentage change = [(215 - 585) / 585] x 100
Subtract the new number by the original number
215 - 585 = -370
-370 ÷ 585 = -0.6324786324786325
-0.6324786324786325 x 100 = -63.25%