281% is the change from 221 to 842
Calculation steps:
[( 842 - 221 ) ÷ 221] x 100 = 281%
Formula
Percentage change = [(842 - 221) / 221] x 100
Subtract the new number by the original number
842 - 221 = 621
621 ÷ 221 = 2.8099547511312215
2.8099547511312215 x 100 = 281%