154.1% is the change from 305 to 775
Calculation steps:
[( 775 - 305 ) ÷ 305] x 100 = 154.1%
Formula
Percentage change = [(775 - 305) / 305] x 100
Subtract the new number by the original number
775 - 305 = 470
470 ÷ 305 = 1.540983606557377
1.540983606557377 x 100 = 154.1%