The childcare subsidies are calculated as a family unit.
Best to use the husbands earnings in your calculations so you don’t skew or mislead people to thinking she’s hard done by.
The husband would net $1316 per week on 90k
Add old girls 728 per week and their combined income is close to 2.045 per week.
77 per day x 5 =385 per week in child care.
So in reality, it comes to about 18 percent of their weekly earnings goes to looking after their 3 children. That includes food.
Or she could stay home, have less money overall and more expenses.
