288.39% is the change from 224 to 870
Calculation steps:
[( 870 - 224 ) ÷ 224] x 100 = 288.39%
Formula
Percentage change = [(870 - 224) / 224] x 100
Subtract the new number by the original number
870 - 224 = 646
646 ÷ 224 = 2.8839285714285716
2.8839285714285716 x 100 = 288.39%