5.91% is the change from 491 to 520
Calculation steps:
[( 520 - 491 ) ÷ 491] x 100 = 5.91%
Formula
Percentage change = [(520 - 491) / 491] x 100
Subtract the new number by the original number
520 - 491 = 29
29 ÷ 491 = 0.059063136456211814
0.059063136456211814 x 100 = 5.91%