your them

$\backslash$table$[[$Wear$,$Sales,Invertary$],[2015,821,778,57\mathrm{.}200],[2016,822,764,57\mathrm{.}340],[2047,$$$24,103,$$$7,480],[2018,524\mathrm{.}636,57\mathrm{.}620],[2019,$$$22\mathrm{.}429,57\mathrm{.}760],[9020,527\mathrm{.}242,$$$7,500],[2021,678$ NE$,54\mathrm{.}040],[2027,$$$28\mathrm{.}640,$$$8\mathrm{.}180],[2023,530\mathrm{.}017,50\mathrm{.}320]]$

Given this indormation, determine the level of saltetry stocks that the from fust flue the flue rears starting in $2017$ and ending in $2021.$

$14\mathrm{.}576$

$11500$

$14\mathrm{.}534$

$|$x$|$

$54\mathrm{.}189$