Looks like you are paying around .35 a round. I ran the cost of reloading based on prices HERE. Biggest cost will be bullets. I assume you are shooting an auto so more variables than a revolver. Here is my cost TODAY.
Primers .... Noticed yesterday they have went up AGAIN. Now avg. here $37 a brick, so say .04 each.
Powder .... Unique is probley the cheapest and it was $18 a pound yesterday, approx. 2000 gr in pound.
Bullets ..... BUY BULK, 1000 at a time is the way to go. Best deal I could find was Ranier 124 gr FMJ at Midway for $107. But shipping will KILL YA. Should be able to get them local at around the same price.
Now for the total:
Assuming you will require 6 gr to cycle you pistol. This is the variable as different pistols will not function the same with the same load. Some go as low as 4.5 gr to 6.2 gr. You will just have to go thru the cycle and find out for your gun. at any rate Unique is approx. .01 a gr.
Powder ........ .06
Primer ......... .04
Bullet .......... .12
I will assume you have the brass so total would be HERE .22 A round, $22 a hundred. The 124 gr are the same cost as 115 gr and with the small 9mm case should create a little more pressure given the same loadings and cycle a LITTLE better, Maybe, Maybe not in your gun.