287.5% is the change from 224 to 868
Calculation steps:
[( 868 - 224 ) ÷ 224] x 100 = 287.5%
Formula
Percentage change = [(868 - 224) / 224] x 100
Subtract the new number by the original number
868 - 224 = 644
644 ÷ 224 = 2.875
2.875 x 100 = 287.5%
Example