21.53% is the change from 209 to 254
Calculation steps:
[( 254 - 209 ) ÷ 209] x 100 = 21.53%
Formula
Percentage change = [(254 - 209) / 209] x 100
Subtract the new number by the original number
254 - 209 = 45
45 ÷ 209 = 0.215311004784689
0.215311004784689 x 100 = 21.53%