55% is the change from 580 to 899
Calculation steps:
[( 899 - 580 ) ÷ 580] x 100 = 55%
Formula
Percentage change = [(899 - 580) / 580] x 100
Subtract the new number by the original number
899 - 580 = 319
319 ÷ 580 = 0.55
0.55 x 100 = 55%
Example