65.12% is the change from 605 to 999
Calculation steps:
[( 999 - 605 ) ÷ 605] x 100 = 65.12%
Formula
Percentage change = [(999 - 605) / 605] x 100
Subtract the new number by the original number
999 - 605 = 394
394 ÷ 605 = 0.6512396694214876
0.6512396694214876 x 100 = 65.12%