# Prediction/Forecast - Excel

#### Macpop

##### New Member
Good day any help I can attain will be awesome.

Issue: Based on two cells I would like to know the probability that the next input will meet the desired result.

Example

Months Yield (The expected yield in 5months is 10%)
5 10%

1 3% (The current yield in 1month is 3%)

I need a formula that will tell me the probability that based on the current month's yield, how likely that the yield of 10% will be attained at month 5.

Thank you.

### Excel Facts

Back into an answer in Excel
Use Data, What-If Analysis, Goal Seek to find the correct input cell value to reach a desired result

#### oldbrewer

##### Board Regular
probabilty - how confident do you want to be in the prediction, 70%, 90%, 95% ?

Maybe the best thing to do is to plot actual yield against the predictions made each month.

#### Macpop

##### New Member
probabilty - how confident do you want to be in the prediction, 70%, 90%, 95% ?

Maybe the best thing to do is to plot actual yield against the predictions made each month.
90%...for this task i need an output and not graphs.

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