Product entry – Time and Cost

I’m having a hell of a time finding any information on what an average cost (in hours, money) per product entry. I am currently entering in all of my clients products into Woo and it is taking forever. I am writing original product descriptions, creating variations, photoshop processing 2-4 images per product, meta descriptions, tagging, and attaching 10-15 product attributes. I need to know if I’m very slow at this so I’m really desperate to find this information. I have dropped my rates by two thirds to get this done for my client and it turns out it is very time consuming. Your experience would be greatly appreciated.