862.79% is the change from 86 to 828
Calculation steps:
[( 828 - 86 ) ÷ 86] x 100 = 862.79%
Formula
Percentage change = [(828 - 86) / 86] x 100
Subtract the new number by the original number
828 - 86 = 742
742 ÷ 86 = 8.627906976744185
8.627906976744185 x 100 = 862.79%