-62.93% is the change from 580 to 215
Calculation steps:
[( 215 - 580 ) ÷ 580] x 100 = -62.93%
Formula
Percentage change = [(215 - 580) / 580] x 100
Subtract the new number by the original number
215 - 580 = -365
-365 ÷ 580 = -0.6293103448275862
-0.6293103448275862 x 100 = -62.93%