342.78% is the change from 187 to 828
Calculation steps:
[( 828 - 187 ) ÷ 187] x 100 = 342.78%
Formula
Percentage change = [(828 - 187) / 187] x 100
Subtract the new number by the original number
828 - 187 = 641
641 ÷ 187 = 3.427807486631016
3.427807486631016 x 100 = 342.78%