Discounted note yield question

[Geoffrey Pierce]

I'm selling four notes at 50% value. Buyer is balking, says I need to create notes with double digit yield to be attractive. Am I thinking of some different type of yield than he is? I thought these were good. Is he looking for something different?

There's no interest on the notes themselves.

n	PV	PMT	FV		Excel's Rate formula answer	Rate x 12
78	6913.075	$182.92	0		2.14%	25.65%
42	2080.96	$109.09	0		4.37%	52.49%
89	5597.685	$135.79	0		2.01%	24.18%
81	8026.82	$207.21	0		2.10%	25.24%
Total	22618.54	635.01