151.8% is the change from 305 to 768
Calculation steps:
[( 768 - 305 ) ÷ 305] x 100 = 151.8%
Formula
Percentage change = [(768 - 305) / 305] x 100
Subtract the new number by the original number
768 - 305 = 463
463 ÷ 305 = 1.518032786885246
1.518032786885246 x 100 = 151.8%