78.82% is the change from 491 to 878
Calculation steps:
[( 878 - 491 ) ÷ 491] x 100 = 78.82%
Formula
Percentage change = [(878 - 491) / 491] x 100
Subtract the new number by the original number
878 - 491 = 387
387 ÷ 491 = 0.7881873727087576
0.7881873727087576 x 100 = 78.82%