70.15% is the change from 268 to 456
Calculation steps:
[( 456 - 268 ) ÷ 268] x 100 = 70.15%
Formula
Percentage change = [(456 - 268) / 268] x 100
Subtract the new number by the original number
456 - 268 = 188
188 ÷ 268 = 0.7014925373134329
0.7014925373134329 x 100 = 70.15%