Lose 1 kg in one week? Possible?

I need to lose 1 kg in 7 days. Is this possible? I have an office job and by the time I get home its too late to work out. However, I try to go jogging 3 times a week.
My bmr is 1400. How many calories would I have to eat to lose this amount of weight?
Lose 1 kg in one week? Possible?
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