76.37% is the change from 491 to 866
Calculation steps:
[( 866 - 491 ) ÷ 491] x 100 = 76.37%
Formula
Percentage change = [(866 - 491) / 491] x 100
Subtract the new number by the original number
866 - 491 = 375
375 ÷ 491 = 0.7637474541751528
0.7637474541751528 x 100 = 76.37%