That would be 2 rows x 2 columns so "4" pcb's per panel, not 5....then there are 5 panels.
So all up 20 pcb's....but at AUD$14 odd cheap as........
I "panalize" the panel so I can get more pcb's for around the same cost.
It used to be that "panelize" was free but now a small extra charge.
Mine have not yet arrived (only a week or so) but I'll show a photo when they do.
When you upload the Gerber File, there is a "quote" on cost BUT you must select the shipping type.
Some can be $50 if you don't watch it.
I choose to pay by Paypal after assessment is done (not automatic pay) as someimes. like with the panelize option, is not included in the quote.
If you only want 1 pcb per panel, I can redo the drawing and re-post Gerber Files for 1 pcb per panel if that is what you prefer.
That then would be 5 pcb all together.
In addition, you would need to cut the board to size, whereas currently, with the score lines in panelize, it is simply snap off.
Cost would be a little less but I would need to calculate just how much when/if the drawing is modified.