249.78% is the change from 223 to 780
Calculation steps:
[( 780 - 223 ) ÷ 223] x 100 = 249.78%
Formula
Percentage change = [(780 - 223) / 223] x 100
Subtract the new number by the original number
780 - 223 = 557
557 ÷ 223 = 2.497757847533632
2.497757847533632 x 100 = 249.78%