323.23% is the change from 198 to 838
Calculation steps:
[( 838 - 198 ) ÷ 198] x 100 = 323.23%
Formula
Percentage change = [(838 - 198) / 198] x 100
Subtract the new number by the original number
838 - 198 = 640
640 ÷ 198 = 3.2323232323232323
3.2323232323232323 x 100 = 323.23%