55.33% is the change from 197 to 306
Calculation steps:
[( 306 - 197 ) ÷ 197] x 100 = 55.33%
Formula
Percentage change = [(306 - 197) / 197] x 100
Subtract the new number by the original number
306 - 197 = 109
109 ÷ 197 = 0.5532994923857868
0.5532994923857868 x 100 = 55.33%