54.18% is the change from 646 to 996
Calculation steps:
[( 996 - 646 ) ÷ 646] x 100 = 54.18%
Formula
Percentage change = [(996 - 646) / 646] x 100
Subtract the new number by the original number
996 - 646 = 350
350 ÷ 646 = 0.541795665634675
0.541795665634675 x 100 = 54.18%