If you made a forecast for Week $4,$ based on a $3$ Week simple moving average, how much would your forecast be different from the actual jobless claims?

$\backslash$table$[[$Week$,$Jobless claims$],[,($in thousands$)],[1,400],[2,393],[3,392],[4,396],[5,404],[6,385],[7,368],[8,366],[10,375],[11,402],[387,]]$