DataSpan, Incorporated, implemented Lean Production and would like to redesign its performance measures accordingly. It has provided the following data sets:

$\backslash$table$[[,$Month,,$],[,4,,,],[$Percentage of on$-$time deliveries,$1,2,3,48],[$Total sales $($units$),78\%,74\%,71\%,68\%,,,],[,3,780,3,618,3,433,3,304,,,]]$

$\backslash$table$[[,$Average per Month $($in days$)],[$Move time per unit,$1,2,3,4],[$Process time per unit,$0\mathrm{.}7,0\mathrm{.}5,0\mathrm{.}6,0\mathrm{.}6],[$Wait time per order before start of production,$2\mathrm{.}3,2\mathrm{.}2,2\mathrm{.}1,2\mathrm{.}0],[$Queue time per unit,$25\mathrm{.}0,27\mathrm{.}4,30\mathrm{.}0,32\mathrm{.}4],[$Inspection time per unit,$4\mathrm{.}9,5\mathrm{.}6,6\mathrm{.}4,7\mathrm{.}3],[,0\mathrm{.}4,0\mathrm{.}5,0\mathrm{.}5,0\mathrm{.}4]]$