223.41% is the change from 252 to 815
Calculation steps:
[( 815 - 252 ) ÷ 252] x 100 = 223.41%
Formula
Percentage change = [(815 - 252) / 252] x 100
Subtract the new number by the original number
815 - 252 = 563
563 ÷ 252 = 2.234126984126984
2.234126984126984 x 100 = 223.41%