Martinez produces smart gadgets that are sold to customers for $$14$ each. Production and other costs for the gadgets are as follows:

The current monthly production and sales volume is $15,000$ and monthly capacity is $25,000$ units.

If the sales price per unit increases by $$1\mathrm{.}50$ and unit sales decrease by $1,000$ units, Tara's monthly profit would change by:

$($Do not use the dollar sign $($$$)$ when entering your answer; indicate negative numbers, i$.$e$.,$ declines in profit, by using a negative sign $(-).)$