how much fat loss per week with 1 meal per day

[appealmaxed]

1 meal around 1000kcal
how much fat lost?

 

[Orc]

don't push beyond 1% and even that's a stretch most people can only do around half a percent a week without going insane.

 

[appealmaxed]

don't push beyond 1% and even that's a stretch most people can only do half a percent a week without going insane.

how much of a deficit would be needed per day to lose 1% per week?