20.61% is the change from 490 to 591
Calculation steps:
[( 591 - 490 ) ÷ 490] x 100 = 20.61%
Formula
Percentage change = [(591 - 490) / 490] x 100
Subtract the new number by the original number
591 - 490 = 101
101 ÷ 490 = 0.20612244897959184
0.20612244897959184 x 100 = 20.61%