225% is the change from 252 to 819
Calculation steps:
[( 819 - 252 ) ÷ 252] x 100 = 225%
Formula
Percentage change = [(819 - 252) / 252] x 100
Subtract the new number by the original number
819 - 252 = 567
567 ÷ 252 = 2.25
2.25 x 100 = 225%
Example