Split and bonus on same day calculation

I know how to calculate the share price after a bonus or split but if both of them occur on the same date, how is the share price calculated.

e.g Rajeshexpo
FV before FV after
Split 29-Jan-08 2.00 1.00

Ratio
Bonus 29-Jan-08 2:2


In amibroker, the auto split calculator calculates the ratio as 5:1. Can someone please tell me how is the ratio 5:1 calculated.

bonus ratio is 2:1 on 29.1.2008. hence every 1 share will become 3 (with 2 bonus shares). On split, every share will become 2. Hence 3 shares will become 6. So, it should be 6:1. Alternatively, for every 1 share, 5 shares will be added in absolute figures and to denote the same, 5:1 might have been displayed.

If split is taken first and bonus is calculated afterwards also, the same number of 6 will be the output

Thanks rvm