Calculate the $2023$ forecast using weighted moving average for the data below; given that the most recent is weighted at $\mathrm{.}6,$ second most recent at $\mathrm{.}3$ and third most recent at $\mathrm{.}2$

$\backslash$table$[[$year$,$Actual$],[2019,25000],[2020,37000],[2021,24000],[2022,12000],[2023,]]$

Using the data in #$16$ calculate the $4-$year moving average for $2023.$

What is the forecasting error if the $2023$ data comes in at $16,000$ and the forecast for $2023$ is $19,000?$