340.43% is the change from 188 to 828
Calculation steps:
[( 828 - 188 ) ÷ 188] x 100 = 340.43%
Formula
Percentage change = [(828 - 188) / 188] x 100
Subtract the new number by the original number
828 - 188 = 640
640 ÷ 188 = 3.404255319148936
3.404255319148936 x 100 = 340.43%