99.69% is the change from 324 to 647
Calculation steps:
[( 647 - 324 ) ÷ 324] x 100 = 99.69%
Formula
Percentage change = [(647 - 324) / 324] x 100
Subtract the new number by the original number
647 - 324 = 323
323 ÷ 324 = 0.9969135802469136
0.9969135802469136 x 100 = 99.69%