69.96% is the change from 456 to 775
Calculation steps:
[( 775 - 456 ) ÷ 456] x 100 = 69.96%
Formula
Percentage change = [(775 - 456) / 456] x 100
Subtract the new number by the original number
775 - 456 = 319
319 ÷ 456 = 0.6995614035087719
0.6995614035087719 x 100 = 69.96%