254.75% is the change from 221 to 784
Calculation steps:
[( 784 - 221 ) ÷ 221] x 100 = 254.75%
Formula
Percentage change = [(784 - 221) / 221] x 100
Subtract the new number by the original number
784 - 221 = 563
563 ÷ 221 = 2.5475113122171944
2.5475113122171944 x 100 = 254.75%