Proration Preview Amount Check

Check proration previews against the price change and time remaining. Preparation only, not an account action.

What to provide

The subscription, the old and new prices and the days left in the cycle.

How it works

1. Record old and new prices.
2. Record the days left in the cycle.
3. Recompute the expected proration.
4. Return the check without changing the subscription.

The output

subscription | old_price | new_price | days_left | prorated

Worked fictional example

Fictional upgrade from 20 to 50 with 15 of 30 days left: expected proration difference of 15.00.

Checks and limits

Keep original values, source IDs and version dates. Unknown facts stay held. Use qualified review for hiring, legal and accounting conclusions. No send, share, sign-in, scheduling, ledger change or payment. Fictional contract review is not a live account compatibility test.

More founders workflows · How-to guides

Method: reviewed source. Demand lead: Documented founders workflow need from the reviewed source; not measured exact intent. Site impressions are not monthly volumes; exact topic volume is unmeasured. Checked October 26, 2026.