64.58% is the change from 607 to 999
Calculation steps:
[( 999 - 607 ) ÷ 607] x 100 = 64.58%
Formula
Percentage change = [(999 - 607) / 607] x 100
Subtract the new number by the original number
999 - 607 = 392
392 ÷ 607 = 0.6457990115321252
0.6457990115321252 x 100 = 64.58%