You seem to have a knack for it.
Let me try. I have a PhD in Equine Economics, so chicken math is coming easily to me.
Earlier this year I ordered 15 chicks online for tick control in the horse's pasture. They wouldn't arrive for another week so, didn't count yet. I went to the feed store and bought 14 chicks. When I got home my boarder mentioned that 14 chicks would not be enough to control the tick population on the farm, so I went to
TSC and bought 12 more.
1 chick from the feed store died, so I got 6 more to replace it (6 chick minimum unless you have a receipt showing you already bought some, and ooops, I forgot my receipt). I still have 0 chickens at this point because no one is old enough to forage on ticks.
Mail order chicks arrive and I lose 1. I feel bad, so order 25 Wyandotte chicks to help with the sorrow. I am told I will be contacted in 6 weeks.
I buy 4 Marens (plus 1 for my boarder) from a woman in the next town, because I wanted some dark eggs.
Seven weeks after I ordered them, I haven't heard from the guy with the Wyandottes, so I figure my 25 Wyandottes chicks aren't coming. I was looking forward to them, but really like my Marens now so order 20 more chicks (Marens and Ameraucanas). That night the Wyandotte breeder calls and tells me the chicks will be shipped the following week.
Since then I have given away two Marens cockerals, sold 4 Hamburg pullets and lost 1 Wyandotte cockeral to a predator.
So on the farm right now, there are 91 chickens (including 3 my mother bought that I didn't mention). However, there are about 19 cockerals that have to go, so they don't count - 72. Also, my mother is claiming a total of 20 chickens, so even though they are here, they don't count, so 52. My boarder's Maren is still here, and she doesn't count so 51.
Even though everyone is out free ranging everyday, no one goes into the back pasture where I want to let the horses graze, so 0 chickens.
So, since I have 0 chickens, I must buy some Guinea fowl in the spring to eat ticks.
edited to add: I forgot to mention that both the Wyandotte breeder and the breeder I bought the Marens and Ameraucanas from, were kind enough to send extra chicks, which were added into the total, but not previously mentioned