Tithing is part of the Old Testament law. Israelites were required to tithe to support the priesthood. As Christians we are allowed to give as much as we want. We could give more than 10% or much less. God loves a cheerful giver. And say, the Bibles that he who gives abundantly will reap abundantly and who he gives sparingly will reap sparingly. We don't know if the blessings are financial or spiritual or physical. The Bible doesn't say.
Most people couldn't pay their bills if they gave 10%.
Thanks for your comment