-51.21% is the change from 580 to 283
Calculation steps:
[( 283 - 580 ) ÷ 580] x 100 = -51.21%
Formula
Percentage change = [(283 - 580) / 580] x 100
Subtract the new number by the original number
283 - 580 = -297
-297 ÷ 580 = -0.5120689655172413
-0.5120689655172413 x 100 = -51.21%