91.51% is the change from 518 to 992
Calculation steps:
[( 992 - 518 ) ÷ 518] x 100 = 91.51%
Formula
Percentage change = [(992 - 518) / 518] x 100
Subtract the new number by the original number
992 - 518 = 474
474 ÷ 518 = 0.915057915057915
0.915057915057915 x 100 = 91.51%