92.1% is the change from 519 to 997
Calculation steps:
[( 997 - 519 ) ÷ 519] x 100 = 92.1%
Formula
Percentage change = [(997 - 519) / 519] x 100
Subtract the new number by the original number
997 - 519 = 478
478 ÷ 519 = 0.9210019267822736
0.9210019267822736 x 100 = 92.1%