What is the minimum cost of crashing the following project that Roger Solano manages at Slippery Rock University by $4$ days?

$\backslash$table$[[\backslash$table$[[$Normal$],[$Activity$]],\backslash$table$[[$Crash$],[$Time $($days$)]],\backslash$table$[[$Normal$],[$Time $($days$)]],\backslash$table$[[$Total Cost$],[$with Crashing Immediate Predecessor$($s$)]],,],[$A$,4,3,$$$800,$$$1,100,-],[$B$,9,7,$$$200,$$$400,-],[$C$,5,4,$$$600,$$$650,-],[$D$,8,6,$$$750,$$$1,500,$A$],[$E$,8,5,$$$1,200,$$$1,650,$C$]]$

By how many days should each activity be crashed to reduce the project completion time by $4$ days? Fill in the table below. $($Enter your responses as whole numbers.$)$

$\backslash$table$[[$Activity$,\backslash$table$[[$Each Activity Should be$],[$Reduced BY$],[($days$)]]],[$A$,],[$B$,],[$C$,],[$D$,],[$E$,]]$

The total cost of crashing the project by $4$ days is $$,($Enter your response as a whole number.$)$