77.3% is the change from 511 to 906
Calculation steps:
[( 906 - 511 ) ÷ 511] x 100 = 77.3%
Formula
Percentage change = [(906 - 511) / 511] x 100
Subtract the new number by the original number
906 - 511 = 395
395 ÷ 511 = 0.7729941291585127
0.7729941291585127 x 100 = 77.3%