. "his foreclosure is made is/are as follows:[If default is for other than payment of money, set forth the particulars]Failure to pay when due the following amounts which are now in arrears: IV.The sum owing on the obligation secured by the Deed of Trust is: Principal $ . . . . . ., together with interest as provided in the note or other instrument secured from the . . . . day of . . . . . ., . . .," . . .