Calculating final paycheck when leaving job

Leaseholder49

I am paid monthly on the last Friday of the month (last pay day was 27 April).

I am leaving my job and my last day of employment is 21 May.

How can I work out what I will get paid in my last payment?

I have left 3 jobs now and never managed to work this out right! I am sure my employers get it right, I'd just like to know what I'm doing wrong, and what I can expect to receive at the end of the month.

I have no outstanding holiday owing/owed.

I receive a pension contribution and taxable gym membership, if that makes any difference.

Thanks!

Savvy_Sue

I'd ask them how they're intending to work it out! You say you're paid on the last Friday of the month, but does that cover the whole of the calendar month?