How to Use the FORECAST Function in WPS on Windows

Last updated:July 13, 2026

This section includes 3 how-to topics for using FORECAST in WPS Spreadsheet; choose a topic from the index and follow the entry path and steps to complete the task.

How-to Index

How-to Guide

1. Enter FORECAST from the Insert Function dialog

Entry path: Formulas tab → Insert Function

  1. Select the cell where you want to enter the formula.
  2. Click the fx button in the formula bar, or click Insert Function on the Formulas tab.
  3. Search for FORECAST in the Insert Function dialog box.
  4. Select the function and click OK.
  5. Fill in each parameter in the Function Arguments dialog box.
  6. Click OK to finish entering the function.

Success Criteria

  • Interface result: The target cell now contains a FORECAST formula.
  • Next actions: You can continue editing parameters, press Enter to confirm, or copy the formula to other cells.

Tips While Using

  • Common mistake: A misspelled function name can make the function harder to find.
  • Environment note: The referenced ranges should contain valid data.

2. Type the FORECAST formula directly in a cell

Entry path: Cell → Formula bar

  1. Select the cell where you want to enter the formula.
  2. Type =FORECAST(...) directly in the cell or in the formula bar.
  3. Press Enter to confirm the formula.
  4. If needed, drag the fill handle to copy the formula to other cells.

Success Criteria

  • Interface result: The cell shows the calculated result, and the formula bar keeps the full formula.
  • Next actions: You can continue editing the formula, copy it, or adjust the referenced ranges.

Tips While Using

  • Common mistake: Using the wrong separator or bracket format can prevent the formula from calculating correctly.
  • Environment note: The referenced data ranges should stay aligned with each other.

3. Review FORECAST syntax and parameter details

Entry path: Formulas tab → Insert Function

  1. Click Insert Function on the Formulas tab.
  2. Enter FORECAST in the search box.
  3. Select the function to review its syntax and parameter details.
  4. Confirm the order of each parameter before completing the input.

Success Criteria

  • Interface result: You can see the FORECAST function name, syntax, and parameter input area.
  • Next actions: You can proceed directly to parameter entry and insert the function.

Tips While Using

  • Common mistake: Entering values before checking the parameter order can lead to unexpected results.
  • Environment note: If the data ranges do not have matching lengths, the result may not return as expected.