260.09% is the change from 228 to 821
Calculation steps:
[( 821 - 228 ) ÷ 228] x 100 = 260.09%
Formula
Percentage change = [(821 - 228) / 228] x 100
Subtract the new number by the original number
821 - 228 = 593
593 ÷ 228 = 2.6008771929824563
2.6008771929824563 x 100 = 260.09%