77.75% is the change from 400 to 711
Calculation steps:
[( 711 - 400 ) ÷ 400] x 100 = 77.75%
Formula
Percentage change = [(711 - 400) / 400] x 100
Subtract the new number by the original number
711 - 400 = 311
311 ÷ 400 = 0.7775
0.7775 x 100 = 77.75%