50.68% is the change from 661 to 996
Calculation steps:
[( 996 - 661 ) ÷ 661] x 100 = 50.68%
Formula
Percentage change = [(996 - 661) / 661] x 100
Subtract the new number by the original number
996 - 661 = 335
335 ÷ 661 = 0.5068078668683812
0.5068078668683812 x 100 = 50.68%