66% is the change from 600 to 996
Calculation steps:
[( 996 - 600 ) ÷ 600] x 100 = 66%
Formula
Percentage change = [(996 - 600) / 600] x 100
Subtract the new number by the original number
996 - 600 = 396
396 ÷ 600 = 0.66
0.66 x 100 = 66%
Example