99.67% is the change from 301 to 601
Calculation steps:
[( 601 - 301 ) ÷ 301] x 100 = 99.67%
Formula
Percentage change = [(601 - 301) / 301] x 100
Subtract the new number by the original number
601 - 301 = 300
300 ÷ 301 = 0.9966777408637874
0.9966777408637874 x 100 = 99.67%