-15.64% is the change from 582 to 491
Calculation steps:
[( 491 - 582 ) ÷ 582] x 100 = -15.64%
Formula
Percentage change = [(491 - 582) / 582] x 100
Subtract the new number by the original number
491 - 582 = -91
-91 ÷ 582 = -0.1563573883161512
-0.1563573883161512 x 100 = -15.64%