Update the full-year forecast with actuals to date

Update our full-year forecast for {{fiscal_year}} using actual results through {{last_actual_month}}, for {{audience}}, so they can see where the year is likely to land against the budget and what has changed since the last forecast.

Budget by month and line:
"""
{{budget}}
"""

Actuals to date by month and line:
"""
{{actuals}}
"""

Previous forecast, if there is one:
"""
{{previous_forecast}}
"""

What we know about the rest of the year (signed deals, price changes, hires, one-off costs, decisions the owners have made): {{known_changes}}

Method for the remaining months: {{method}}

Produce:
1. A full-year table by line with the columns Line, Budget, Actual to date, Remaining forecast, Full-year forecast, Change vs budget, Change vs previous forecast.
2. How each line's remaining months were forecast: the method, the base figure and any adjustment from the known changes, one line each. For example: "Rent: 8,000 a month x 5 months = 40,000, no change." This example shows the form only.
3. The five largest changes against budget, each with the amount and its reason, taken from the actuals or the known changes.
4. Assumptions and open questions, numbered, so the owners can confirm or correct them.

Apply only the method above to the actual figures; do not add growth rates, seasonality or trends the method does not call for. Where a known change has no amount or date, do not size it yourself: forecast the line on the method alone and list the change under open questions as [amount needed]. Do not change the actuals. If the method uses a run rate, keep one-off items in the actuals out of it and say which ones you excluded. Make sure every full-year figure equals actual to date plus remaining forecast and that the lines add up to the totals. Keep the commentary under 400 words.