Sales Forecast using Weighted Moving Average

Given the following, determine the expected sales on September $18$th and September $19$th$,$ using a $3-$day weighted moving average.

Is your weighted moving average result higher or lower than if you had simply done a $3-$day moving average? What caused it to be higher or lower?

$\backslash$table$[[$MONTH$,$DATE,$\backslash$table$[[$ACTUAL SALES$],[$IN DOLLARS$]],\backslash$table$[[$W$1=10],[$W$2=25],[$W$3=30]]],[$SEPTEMBER$,12,$$$1,500,],[,13,$$$2,500,],[,14,$$$2,500,],[,15,$$$3,500,],[,16,$$$3,000,],[,17,$$$4,500,],[,18,,],[,19,,]]$