266.07% is the change from 224 to 820
Calculation steps:
[( 820 - 224 ) ÷ 224] x 100 = 266.07%
Formula
Percentage change = [(820 - 224) / 224] x 100
Subtract the new number by the original number
820 - 224 = 596
596 ÷ 224 = 2.6607142857142856
2.6607142857142856 x 100 = 266.07%