I have 94 stitches at the top of the sleeve…I need to end up with 46 stitches at the cuff…this decreasing needs to happen over the course of 75 rows…any easy calculations for how many over how many rows…Mind is swimming…is there a formula for this?

# Decreasing math!

You need to get rid of 48 stitches and since you will be getting rid of 2 of them on every decrease row (one at each side) you will need 24 decrease rows. 24 goes into 75 3 times with 3 left over. I would just decrease every 3rd row or round as the case may be. That should turn out about right.