279.46% is the change from 224 to 850
Calculation steps:
[( 850 - 224 ) ÷ 224] x 100 = 279.46%
Formula
Percentage change = [(850 - 224) / 224] x 100
Subtract the new number by the original number
850 - 224 = 626
626 ÷ 224 = 2.794642857142857
2.794642857142857 x 100 = 279.46%