What is “Actual Forecast Previous”?
“Actual”, “Forecast”, and “Previous” are three numbers tied to the same economic data release (an indicator report). They are commonly shown together on economic calendar listings.
- Actual: what was published for that indicator when the release occurred.
- Forecast: an estimated value made before the release (often based on models and available information).
- Previous: the value from the last time that same indicator was released.
A worked example is simply a fully numeric scenario where you (1) pick assumptions, (2) assign example values to Actual, Forecast, and Previous, and (3) show the comparisons you can compute from those values—without claiming prediction or certainty.
How does a worked example of Actual Forecast Previous work?
In a worked example, you treat Actual, Forecast, and Previous as inputs for calculations that describe differences, not outcomes.
A common comparison framework uses stable mechanics:
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Beat/Miss vs Forecast
- Difference: (\Delta_{F} = \text{Actual} - \text{Forecast})
- Direction: if (\Delta_{F} > 0), Actual is higher than Forecast; if (\Delta_{F} < 0), Actual is lower.
-
Change vs Previous
- Difference: (\Delta_{P} = \text{Actual} - \text{Previous})
- Direction: indicates whether the new release is higher or lower than the last released value.
-
Consistency check (optional)
- Sometimes you also compare whether the move from Previous to Actual aligns with the move from Forecast to Actual.
- This can be described qualitatively, but you still avoid concluding anything about future price direction.
Important: the “worked” part is that every assumption is stated and every computed number is shown.
Evidence or example: a transparent numerical scenario
Assume a single economic indicator release measured in index points. We will use hypothetical numbers to demonstrate mechanics only.
Assumptions (state up front)
- The indicator’s units for Actual, Forecast, and Previous are the same (index points).
- The series is not converted between different forms in your example (for example, not mixing “annual % change” with “level”).
- The numbers are aligned to the same release period described on the calendar (same month/quarter).
- We do not include later revisions; we treat the displayed values as final for the purpose of calculation.
Given values
- Actual = 108
- Forecast = 103
- Previous = 100
Calculations
-
Beat/Miss vs Forecast
- (\Delta_{F} = 108 - 103 = 5)
- Interpretation (mechanical): Actual is 5 points higher than Forecast.
-
Change vs Previous
- (\Delta_{P} = 108 - 100 = 8)
- Interpretation (mechanical): Actual is 8 points higher than Previous.
-
Simple direction summary
- Forecast-to-Actual move is upward (because Actual > Forecast).
- Previous-to-Actual move is also upward (because Actual > Previous).
What this example does not claim
It does not claim the release will cause any specific forex move. It only shows how to compute differences from the three labeled inputs.
Limitations and risks (material failure modes)
Even when the math is correct, interpretation can fail for reasons that are separate from the worked calculations:
- Units or definitions mismatch: calendars may show a value for a specific transformation (e.g., “change” vs “level”). If Forecast and Previous refer to different transformations, comparisons become misleading.
- Revisions and updates: Previous values can change later due to data revisions. If you rely on what “Previous” meant at the time versus its later revised form, you may misread the magnitude of the change.
- Timing and market context: forex reactions depend on broader conditions, liquidity, and whether the market had already priced expectations. Historical relationships between releases and prices do not reliably forecast future results.
- Provider display differences: forecasting sources and aggregation methods can differ, so the shown “Forecast” may not represent a single shared expectation.
- Execution and costs: even if you anticipate volatility, actual trading outcomes depend on spreads, slippage, and other trading frictions—factors not contained in the Actual/Forecast/Previous trio.
Because of these issues, a worked example should be treated as an arithmetic and interpretation exercise, not a predictive tool.
Verification and next question to ask
To independently verify the relevant facts for any real release, you can:
- Confirm that Actual, Forecast, and Previous correspond to the same indicator, same period, and same units.
- Recompute (\Delta_{F}) and (\Delta_{P}) from the displayed numbers to check your arithmetic.
- Note any calendar notes about methodology or revisions, since “Previous” may not remain constant.