90.94% is the change from 519 to 991
Calculation steps:
[( 991 - 519 ) ÷ 519] x 100 = 90.94%
Formula
Percentage change = [(991 - 519) / 519] x 100
Subtract the new number by the original number
991 - 519 = 472
472 ÷ 519 = 0.9094412331406551
0.9094412331406551 x 100 = 90.94%