15.68% is the change from 491 to 568
Calculation steps:
[( 568 - 491 ) ÷ 491] x 100 = 15.68%
Formula
Percentage change = [(568 - 491) / 491] x 100
Subtract the new number by the original number
568 - 491 = 77
77 ÷ 491 = 0.15682281059063136
0.15682281059063136 x 100 = 15.68%