274.21% is the change from 221 to 827
Calculation steps:
[( 827 - 221 ) ÷ 221] x 100 = 274.21%
Formula
Percentage change = [(827 - 221) / 221] x 100
Subtract the new number by the original number
827 - 221 = 606
606 ÷ 221 = 2.742081447963801
2.742081447963801 x 100 = 274.21%