54.9% is the change from 643 to 996
Calculation steps:
[( 996 - 643 ) ÷ 643] x 100 = 54.9%
Formula
Percentage change = [(996 - 643) / 643] x 100
Subtract the new number by the original number
996 - 643 = 353
353 ÷ 643 = 0.5489891135303266
0.5489891135303266 x 100 = 54.9%