-16.03% is the change from 580 to 487
Calculation steps:
[( 487 - 580 ) ÷ 580] x 100 = -16.03%
Formula
Percentage change = [(487 - 580) / 580] x 100
Subtract the new number by the original number
487 - 580 = -93
-93 ÷ 580 = -0.16034482758620688
-0.16034482758620688 x 100 = -16.03%