82.39% is the change from 477 to 870
Calculation steps:
[( 870 - 477 ) ÷ 477] x 100 = 82.39%
Formula
Percentage change = [(870 - 477) / 477] x 100
Subtract the new number by the original number
870 - 477 = 393
393 ÷ 477 = 0.8238993710691824
0.8238993710691824 x 100 = 82.39%