54.4% is the change from 647 to 999
Calculation steps:
[( 999 - 647 ) ÷ 647] x 100 = 54.4%
Formula
Percentage change = [(999 - 647) / 647] x 100
Subtract the new number by the original number
999 - 647 = 352
352 ÷ 647 = 0.5440494590417311
0.5440494590417311 x 100 = 54.4%