Sales cycle in working days (NETWORKDAYS)

Hard Math Sales pack
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The problem

Problem statement

The sales cycle is measured in working days, not calendar days — a deal that closed over a weekend did not take two extra days. First contact and close dates for deal D-401 are in B2 and C2. Put the working-day length in the Working days cell D2.

Weekends do not count, and both the first-contact day and the close day do.

Problem data

Show the sheet as a table (selectable, copyable)
The exercise data, as a table
ABCD
1DealFirst contactClosedWorking days
2D-4012026-01-052026-01-16
3D-4022026-02-022026-02-13
4D-4032026-03-022026-03-09

Notes

NETWORKDAYS(start, end) counts both end points and skips Saturday and Sunday. Subtracting the dates gives calendar days, which inflates every cycle that spans a weekend — and a cycle that starts on a Saturday counts as one day, not three.

How to approach

Your answer goes in D2.

  1. Target cell is D2
  2. NETWORKDAYS takes a start and an end
  3. Both ends are included
  4. Shape: =NETWORKDAYS(?, ?)

Related practice

FAQ

How do I measure a sales cycle in working days?

=NETWORKDAYS(first_contact, close). It skips weekends and counts both ends.

Why is a weekend deal one day and not three?

Saturday and Sunday are not working days, so only the Monday counts. Calendar subtraction would return 3.