310.1% is the change from 198 to 812
Calculation steps:
[( 812 - 198 ) ÷ 198] x 100 = 310.1%
Formula
Percentage change = [(812 - 198) / 198] x 100
Subtract the new number by the original number
812 - 198 = 614
614 ÷ 198 = 3.101010101010101
3.101010101010101 x 100 = 310.1%