63.64% is the change from 209 to 342
Calculation steps:
[( 342 - 209 ) ÷ 209] x 100 = 63.64%
Formula
Percentage change = [(342 - 209) / 209] x 100
Subtract the new number by the original number
342 - 209 = 133
133 ÷ 209 = 0.6363636363636364
0.6363636363636364 x 100 = 63.64%