What are the campaign fees / costs?

Just signed up to a campaign, absolutely no idea how much fees are (didnt mean to do it!) Can anyone explain the approximate fees or how it works? thanks!

You set the maximum fees per click, you set the maximum fees per day. If you wanted to set a maximum of £2 a click and £50 a day you could. And the cost to you would be between £0 and £50 a day.

Perhaps start low, say 10p a click? And a couple of pounds a day until you know what is effective for your items.

You set the maximums, the actual amount depends on other sellers bids and can be lower. For instance I have had a popular keyword bid at 20p max that has cost 8p for a click.