252.49% is the change from 221 to 779
Calculation steps:
[( 779 - 221 ) ÷ 221] x 100 = 252.49%
Formula
Percentage change = [(779 - 221) / 221] x 100
Subtract the new number by the original number
779 - 221 = 558
558 ÷ 221 = 2.524886877828054
2.524886877828054 x 100 = 252.49%