Write the equation you would use in Excel to find the present value of the following expected after-tax cash flows that will be generated over the next 67 months (the required return is 10%/year):

	A	B	C	D	E	F	G
1	Time 0	7 month	19 month	31 month	43 month	55 month	67 month
2		-$100m	$30m	$40m	$55m	$65m	$75m