How do i get the totals of the quantity of each item?

My mysql database has a table called items inside there are 132 records. Each record has a row named quantity and it has a number in it.

I want to find out how many total i have. Bascially this is a inventory database and for each item in the inventory it has quantity but i want to find out the total inventory.

What would my mysql query be?

 

SELECT SUM(qty_column) AS total_in_inventory FROM my_table;