29.19% is the change from 209 to 270
Calculation steps:
[( 270 - 209 ) ÷ 209] x 100 = 29.19%
Formula
Percentage change = [(270 - 209) / 209] x 100
Subtract the new number by the original number
270 - 209 = 61
61 ÷ 209 = 0.291866028708134
0.291866028708134 x 100 = 29.19%