Working out where to start

Hi

I am currently looking at applying to see if I can get a mortgage. I have a good deposit saved up and have a regular income as well. Looking at all the mortgage info is quite daunting and so no idea where to start.

What I have gathered is that the more deposit I have for a certain house value then the less percentage my mortgage repayments will be and at what I am looking at it seems to say I can borrow up to £84k

If I am looking at a property that is more than that maximum value I can borrow but I use my deposit to make up the remainder will I then be paying back a huge % for my repayments?

I can't seem to work out how much that would be. My deposit is about £22k

Thanks

N