Find the size of the deposit to be made now, that will provide beginning$-$of$-$month payments of $$300$ for the first $6$ years and $$400$ for the next $4$ years using $3\mathrm{.}1\%$ compounded semi$-$annually?

How much interest is made during this annuity? using a Finacial calculator and using the chart BGN

$/$

END N

I

$/$

Y

P

$/$

Y

C

$/$

Y

PV

PMT

FV