-63.31% is the change from 586 to 215
Calculation steps:
[( 215 - 586 ) ÷ 586] x 100 = -63.31%
Formula
Percentage change = [(215 - 586) / 586] x 100
Subtract the new number by the original number
215 - 586 = -371
-371 ÷ 586 = -0.6331058020477816
-0.6331058020477816 x 100 = -63.31%