81.13% is the change from 477 to 864
Calculation steps:
[( 864 - 477 ) ÷ 477] x 100 = 81.13%
Formula
Percentage change = [(864 - 477) / 477] x 100
Subtract the new number by the original number
864 - 477 = 387
387 ÷ 477 = 0.8113207547169812
0.8113207547169812 x 100 = 81.13%