Drum shows cost figures in two related ways: the base supplier or staff amount, and the marked-up sell amount after any percentage or fixed markup. Claim and invoice screens that describe what you are charging the client use the marked-up sell figure so they match what you see when claiming and reporting.
On progress claims
When you choose how much of a cost sits on a claim (the Amount to claim modal), the total shown is the cost’s marked-up ex-tax amount. Percentages, remaining unclaimed amounts and the default claim amount are all in those sell units.
Example: a $145.00 cost with 10% markup is treated as $159.50 to claim. Claiming 50% stores $79.75 on the inclusion and leaves $79.75 unclaimed.
When the claim converts to an invoice, the invoice line uses that sell slice. The internal cost-to-invoice allocation still stores the matching base slice for financial tracking.
On costs lists and Allocated Costs
On the project Costs list, the Invoiced column shows the marked-up billed amount,
alongside Price (base) and Marked Up (full sell total).
On an invoice’s Allocated Costs table, Cost Allocation shows the marked-up allocation of the cost’s marked-up total (for example $88.00 of $88.00 total). The Markup column still shows the rate or fixed markup applied to the cost. Project Insights unbilled links and the costs Excel export use the same sell figures for invoiced amounts.
What stays on the base amount
Editing a cost’s price, typing an allocation amount on the cost–invoice edit field, and the stored cost–invoice amount remain on the base (pre-markup) slice. Display on claim, costs and invoice readouts is what moved to marked-up sell so those screens stay consistent with each other.
Why the displays moved
Base amounts are right for entering supplier or staff cost. Sell amounts are right for “what are we charging?” If claim and invoice readouts stayed on base while you claimed on sell, the numbers would disagree. Keeping edit fields on base and readouts on sell is the deliberate split.
Rounding
Marking up each allocated slice separately can differ by about one cent from marking up the whole billed base once. That follows Drum’s existing per-amount markup rounding.