The contract states separate additions for labour, materials and plant. Applying an average to the lot is quick, and it is the reason the sheet comes back with a query instead of a signature.
The percentages differ because they cover different things. On labour the addition carries national insurance, holiday pay, pension, supervision, small tools and insurance before it reaches overheads and profit. On materials most of the cost is already in the invoice.
QScope applies each addition to its own element and shows the sheet total with the workings, so the figure being submitted is a calculation the other side can check rather than a number they have to accept or argue with.
Only sheets marked as agreed are carried into the final account. Carrying submitted sheets as though they were due inflates the account and damages confidence in the rest of it, which is a poor trade for a figure that was always going to be tested.
The transfer to the final account is one explicit click, not an automatic feed. An automatic feed would overwrite a figure you had negotiated every time somebody edited a sheet.
Daywork is not a separate kind of change. It is one of the ways a variation is valued when the work cannot properly be measured at contract rates. The variation is still the thing being paid for, and the sheet is how its value is reached.
QScope holds the variation with its basis of valuation set to daywork, so the account shows why the sheet was used rather than a rate, and the audit trail carries the reasoning.
A daywork sheet with no instruction behind it is the hardest money on any job to recover. The work was done, the hours are real, and without written authority it will be refused. The register exists so the authority is on file before the sheet is submitted.
QScope links every sheet to the instruction that authorised the work, and flags any sheet that has none, in the same place the sheet is prepared.
An agreed daywork total is not paid on the side. Under JCT it is valued in the periodic certificate like any other variation, so retention is deducted once and the statutory dates run down one track.
QScope carries the agreed total into the certificate as a normal line, so the client sees a valuation that adds up rather than a separate invoice arriving out of sequence.
Only where the work cannot properly be valued by measurement at contract rates. Where a rate exists, the rate applies. Daywork is not a choice between two ways of valuing the same work.
Your contract particulars. Enter them once per project and every sheet uses them.
Where the contract adopts the RICS definition of prime cost of daywork, that document decides. A percentage applied to the wrong base is wrong however carefully it is applied.
Yes, in the files area against the project. Contemporaneous signed records are what make daywork recoverable.
Not your whole portfolio. One live job, one certificate. If it does not save you time the first time you use it, walk away and take your data with you.