That's about as exact as my answer would be TBH. One of those string length related questions.I tend to double the vat, but 1 mate puts 50% on and another nowt, depends on client sometimes as well. Sorry not very exact!
Can they all deliver them to the door at the time required, and do they offer a warranty that includes removal and refitting, do they offer any credit services? No? Then charge whatever is reasonable for the services included with the product.As much as is feasible without exceeding the cost that Mr customer can buy it himself/herself at B&Q/WICKES/HOMEBASE/WILKINSONE etc. etc...no good trying to charge a customer more than they can purchase it themselves.....
The question is about the MATERIALS...Can they all deliver them to the door at the time required, and do they offer a warranty that includes removal and refitting, do they offer any credit services? No? Then charge whatever is reasonable for the services included with the product.
+1I tend not to itemise that many invoices TBH, and if I did it would be labour and materials, and the markup on the materials is what covers the diesel to fetch it etc... The labour is the same for fitting it regardless of the cost of it and who supplied it.