Sharp EL-9900 operation manual FV calculation, PMT calculation

Appendix

3. FV calculation

1 If r ≠ 0, r > -1

	PV + (1 + r ⋅ s) ⋅		1 – (1 + r)-n	⋅ PMT
FV = –			r
		+ r)-n
(1

2 If r = 0

FV = -n ⋅ PMT – PV

3If r ≤ -1 Error

4.PMT calculation

1If r ≠ 0, r > -1

PMT = –	PV + FV ⋅ (1 + r)-n
	(1 + r ⋅ s) ⋅	1	– (1 + r)-n
			r

2 If r = 0

PMT = – PV + FV n

3If r ≤ -1 Error

5.N calculation

1If r ≠ 0, r > -1

{PV + 1 ⋅ (1 + r ⋅ s) ⋅ PMT }

log r

	1		⋅ (1 + r ⋅ s) ⋅ PMT – FV
N = –		r
			log (1 + r)

2 If r = 0

N = – FV + PV

PMT

3If r ≤ -1 Error

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