288.89% is the change from 198 to 770
Calculation steps:
[( 770 - 198 ) ÷ 198] x 100 = 288.89%
Formula
Percentage change = [(770 - 198) / 198] x 100
Subtract the new number by the original number
770 - 198 = 572
572 ÷ 198 = 2.888888888888889
2.888888888888889 x 100 = 288.89%