256.68% is the change from 217 to 774
Calculation steps:
[( 774 - 217 ) ÷ 217] x 100 = 256.68%
Formula
Percentage change = [(774 - 217) / 217] x 100
Subtract the new number by the original number
774 - 217 = 557
557 ÷ 217 = 2.5668202764976957
2.5668202764976957 x 100 = 256.68%