339.39% is the change from 198 to 870
Calculation steps:
[( 870 - 198 ) ÷ 198] x 100 = 339.39%
Formula
Percentage change = [(870 - 198) / 198] x 100
Subtract the new number by the original number
870 - 198 = 672
672 ÷ 198 = 3.393939393939394
3.393939393939394 x 100 = 339.39%