30.81% is the change from 198 to 259
Calculation steps:
[( 259 - 198 ) ÷ 198] x 100 = 30.81%
Formula
Percentage change = [(259 - 198) / 198] x 100
Subtract the new number by the original number
259 - 198 = 61
61 ÷ 198 = 0.30808080808080807
0.30808080808080807 x 100 = 30.81%