My uncle opened a machine shop at the start of the year. They assemble and repair machines or metal works like beds, gates, windows, etc. I have been tasked in checking his books for the mean time since I am not that busy with my regular work. I do his accounting on weekends, summarizing all his weekly transactions. Or sometimes, I visit his shop after work. The last time, I went there, I was surprised to see they have the new materials which I ordered a week ago.