Cases from cite.case.law:

IN RE ALLIANCE WELL SERVICE, LLC, LLC, v. J. S., 577 B.R. 389 (Bankr. D.N.M. 2017)

. . . Between March 3, 2016, and July 14, 2016, Plaintiff paid Defendant $88,595.42 ($561.66 per day) in court-ordered . . . Ward semimonthly payments equal to the daily rate of $561.66, in order to adequately protect J.S. . . . provided for full payment of Defendant’s secured claim, through daily adequate protection payments of $561.66 . . .

S. McKEE, v. UNITED STATES GIBBS, v. UNITED STATES, 781 F.2d 1043 (4th Cir. 1986)

. . . McKee then claimed a credit of $561.66 on line 42 and again on line 48 (total credits). . . . On line 65, McKee then entered $561.66, the amount of credit claimed on lines 42 and 48. . . . return a letter, in which she explained her objection to defense spending and her request that the $561.66 . . .

SMITH v. UNITED STATES, 17 F. Supp. 353 (S.D.W. Va. 1936)

. . . in the computation of his income tax for the year 1922, is entitled to the deduction of the sum of $561.66 . . .