Puppy Palace uses tenant-days as its measure of activity; an animal housed in the kennel for one day is counted as one tenant-day. During March, the kennel budgeted for 5,300 tenant-days, but its actual level of activity was 5,320 tenant-days. The kennel has provided the following data concerning the formulas used in its budgeting and its actual results for March:

Puppy Palace uses tenant-days as its measure of activity; an animal housed in the kennel for one day is counted as one tenant-day. During March, the kennel budgeted for 5,300 tenant-days, but its actual level of activity was 5,320 tenant-days. The kennel has provided the following data concerning the formulas used in its budgeting and its actual results for March: Data used in budgeting: Revenue Wages and salaries Food and supplies Facility expenses Administrative expenses Total expenses Fixed element per month $ 0 $ 4,300 900 8,700 7,700 $ 21,600 Variable element per tenant-day $ 31.80 $ 7.80 12.60 4.80 0.60 $ 25.80 Actual results for March: Revenue Wages and salaries Food and supplies Facility expenses Administrative expenses $ 109,080 $ 23,630 $ 36,803 $ 19,380 $ 9,166 The net operating income in the flexible budget for March would be closest to