I don't tithe. I believe that tithing is a concept from the Old Testament that was fulfilled in the Net Testament. Now, instead of giving 10% give your time/talents/treasures from the heart. 10% for the rich person is just a giving of the excess and it is not the same as 10% for a working person; in debt and living paycheck to paycheck trying to make ends meet and support a family. Take the lesson of the 'widow's mite' she gave more than the others who donated much more, because she gave out of love what she could and not of excess monies. Jesus said that her contribution was greater than all.
As I said, I don't tithe but I do give generously, from the heart. And the amount I give isn't determined by any 10% rule. Give generously from the heart. PS. Make sure you aren't giving at all to a multimillionaire pastor or a megachurch that's grubbing for your money for luxuries for themselves. Give nothing to the greedy, and there are so many greedy preachers, pretending to preach in the name of Jesus.
If your pastor/preacher is living the high life on the congregation's dime, not a penny from you.