221.03% is the change from 252 to 809
Calculation steps:
[( 809 - 252 ) ÷ 252] x 100 = 221.03%
Formula
Percentage change = [(809 - 252) / 252] x 100
Subtract the new number by the original number
809 - 252 = 557
557 ÷ 252 = 2.2103174603174605
2.2103174603174605 x 100 = 221.03%