155.08% is the change from 305 to 778
Calculation steps:
[( 778 - 305 ) ÷ 305] x 100 = 155.08%
Formula
Percentage change = [(778 - 305) / 305] x 100
Subtract the new number by the original number
778 - 305 = 473
473 ÷ 305 = 1.5508196721311476
1.5508196721311476 x 100 = 155.08%