253.21% is the change from 218 to 770
Calculation steps:
[( 770 - 218 ) ÷ 218] x 100 = 253.21%
Formula
Percentage change = [(770 - 218) / 218] x 100
Subtract the new number by the original number
770 - 218 = 552
552 ÷ 218 = 2.532110091743119
2.532110091743119 x 100 = 253.21%