250.68% is the change from 221 to 775
Calculation steps:
[( 775 - 221 ) ÷ 221] x 100 = 250.68%
Formula
Percentage change = [(775 - 221) / 221] x 100
Subtract the new number by the original number
775 - 221 = 554
554 ÷ 221 = 2.506787330316742
2.506787330316742 x 100 = 250.68%