Given the following original forecast and actual data:

Month Forecast Actual Trend

Jan $50060550$

Feb $59455020$

Mar $--552$

Apr $--573$

May $--650$

Jun $--660$

Jul $--682$

Aug $--675$

Sep $--654$

Oct $--689$

Nov $--???$

part A Use a $2$ month weighted moving average with weights for periods t $=60\%,$ t$-1=40\%,$ to make a forecast for each month through November. What is the error $($Actual minus Forecast$)$ each month through October?