21.33% is the change from 225 to 273
Calculation steps:
[( 273 - 225 ) ÷ 225] x 100 = 21.33%
Formula
Percentage change = [(273 - 225) / 225] x 100
Subtract the new number by the original number
273 - 225 = 48
48 ÷ 225 = 0.21333333333333335
0.21333333333333335 x 100 = 21.33%