30.62% is the change from 209 to 273
Calculation steps:
[( 273 - 209 ) ÷ 209] x 100 = 30.62%
Formula
Percentage change = [(273 - 209) / 209] x 100
Subtract the new number by the original number
273 - 209 = 64
64 ÷ 209 = 0.3062200956937799
0.3062200956937799 x 100 = 30.62%