Calculating a Cost per Amount

[Michelle_MBS]

Trying to create a formula that will calculate a cost: 

$75 for the first $2,500 then $2.50 per $1,000 (beyond the $2,500)

Appreciate any help!

[#2]

@Michelle_MBS 

As variant

=(75+INT((A1-2500)/1000)*2.5)*(A1>=2500)