51.6% is the change from 657 to 996
Calculation steps:
[( 996 - 657 ) ÷ 657] x 100 = 51.6%
Formula
Percentage change = [(996 - 657) / 657] x 100
Subtract the new number by the original number
996 - 657 = 339
339 ÷ 657 = 0.5159817351598174
0.5159817351598174 x 100 = 51.6%