91.75% is the change from 291 to 558
Calculation steps:
[( 558 - 291 ) ÷ 291] x 100 = 91.75%
Formula
Percentage change = [(558 - 291) / 291] x 100
Subtract the new number by the original number
558 - 291 = 267
267 ÷ 291 = 0.9175257731958762
0.9175257731958762 x 100 = 91.75%