-65% is the change from 580 to 203
Calculation steps:
[( 203 - 580 ) ÷ 580] x 100 = -65%
Formula
Percentage change = [(203 - 580) / 580] x 100
Subtract the new number by the original number
203 - 580 = -377
-377 ÷ 580 = -0.65
-0.65 x 100 = -65%
Example