Drag each $100 block from the paycheck into needs, wants or savings. The targets are half for needs, 30% for wants and 20% for savings. Halfway through, something will go wrong, because it always does.
The repair is $200. It comes out of the money you have not placed yet.
One way to split take-home pay so the bills, the fun and the future each get a share. It is a starting point, not a law. In an expensive city, needs can run past half, and the wants bucket is where that comes from.