278.92% is the change from 223 to 845
Calculation steps:
[( 845 - 223 ) ÷ 223] x 100 = 278.92%
Formula
Percentage change = [(845 - 223) / 223] x 100
Subtract the new number by the original number
845 - 223 = 622
622 ÷ 223 = 2.789237668161435
2.789237668161435 x 100 = 278.92%