I know a guy who uses SignVox and swear by it, once you’ve put all your costs into it it tells you what to charge, invoices etc.
I still tend to do it with simple mark ups on materials and hourly rates.
examples might be..
I have a mtr rate for cut/weeded/taped vinyl of (for eg. oracle 551) £20 per linear mtr.
complete panels (compo, plastic etc.) are anything from 50% to 100% mark-up – dependng on the amount involved. cut panels start at 100% mark-up.
so, for your sign above, it’s 1.4 sheet of composite, if using something decent like skybond then approx £50 for the sheet, most suppliers cut free of charge but your customer doesn’t know that… so 100% mark up is £100 per sheet, £25 for the 1/4 panel + £5 cut charge, £30. add the delivery cost if there is one.
assuming one line of single colour text, 1.5m of vinyl, £30.
30mins design at your hourly rate,
1hr labour to cut/weed/apply,
on site (incl travel) also at your hourly rate,
add the lot together and there’s your price! Installed I would be around £150 with a 2hr installation.
Ok, it’s not always that simple, you need to factor in your overheads etc. but it’s one way to arrive at your price.
I always quote the installation separately too… a good number of my customers will take it away and fit it themselves to save £100, saves me a lot of messing about too!