72.5% is the change from 280 to 483
Calculation steps:
[( 483 - 280 ) ÷ 280] x 100 = 72.5%
Formula
Percentage change = [(483 - 280) / 280] x 100
Subtract the new number by the original number
483 - 280 = 203
203 ÷ 280 = 0.725
0.725 x 100 = 72.5%
Example