"We're gonna use a method called Exponential Smoothing," Force Ghost Yoda told them, but that starts with the prior period's forecast. We don't have that for Day $1,$ so we have to stipulate what the forecast is$.$ We'll make it equal to that day's actual number $-$ something called a Naive Forecast."

Day Pounds of Porg Sausage Used Porg Sausage Forecast

$19$ GOLF

$213$

$313$

$412$

$515$

$616$

$716$

$817$

$920$

$1019$

$1119$

$1221$

$1323$

$1424$