92.34% is the change from 509 to 979
Calculation steps:
[( 979 - 509 ) ÷ 509] x 100 = 92.34%
Formula
Percentage change = [(979 - 509) / 509] x 100
Subtract the new number by the original number
979 - 509 = 470
470 ÷ 509 = 0.9233791748526523
0.9233791748526523 x 100 = 92.34%