81.5% is the change from 519 to 942
Calculation steps:
[( 942 - 519 ) ÷ 519] x 100 = 81.5%
Formula
Percentage change = [(942 - 519) / 519] x 100
Subtract the new number by the original number
942 - 519 = 423
423 ÷ 519 = 0.815028901734104
0.815028901734104 x 100 = 81.5%