99.31% is the change from 291 to 580
Calculation steps:
[( 580 - 291 ) ÷ 291] x 100 = 99.31%
Formula
Percentage change = [(580 - 291) / 291] x 100
Subtract the new number by the original number
580 - 291 = 289
289 ÷ 291 = 0.993127147766323
0.993127147766323 x 100 = 99.31%