79.84% is the change from 511 to 919
Calculation steps:
[( 919 - 511 ) ÷ 511] x 100 = 79.84%
Formula
Percentage change = [(919 - 511) / 511] x 100
Subtract the new number by the original number
919 - 511 = 408
408 ÷ 511 = 0.7984344422700587
0.7984344422700587 x 100 = 79.84%