sals periods question

[Robot_zhang]

I find a regularity for my business. I find our sales amount in next half-month (15-31) are more than last half-month (1-14). Why? anybody have same thing?

[Essex_boy]

is it a consumer product? COuld be people are near to being piad.

It a consumable? Could be life cycle of product ends four weekly.

Just what is it you sell?

[Robot_zhang]

Essex_boy, thank you for your reply.

No, my production is kung fu learning video