282.35% is the change from 221 to 845
Calculation steps:
[( 845 - 221 ) ÷ 221] x 100 = 282.35%
Formula
Percentage change = [(845 - 221) / 221] x 100
Subtract the new number by the original number
845 - 221 = 624
624 ÷ 221 = 2.823529411764706
2.823529411764706 x 100 = 282.35%