Data Entry Speed Projection

#1
Hello Everyone,

I was asked to come up with statistical method on how to forecast data entry speed based on the previous data entry speed. Anyone who could help me on how to do this?

Example:

Below data are based on the actual speed in data entry.

Dec 03 - 08
Mon - speed is 39.50
Tue - Speed is 44.01
Wed - Speed is 38.75
Thu - speed is 55.62
Fri - Speed is 49.24
Sat - Speed is 47.55

Question:
How can I project speed for Dec 10 (next week target) based on the actual previous week speed? The projected speed will serve as the target and should be attainable and doable. What factors to consider?

thanks,