### Instruction: A 1$\%$ late charge was added to Jenna's bill on the $30^{\text{th}}$ day past its due date. The resulting total was then increased by 1$\%$ because she did not pay the bill in the next 30 days either. Her original bill was $\$400$. Exactly how much is the bill now?### Response: So the original bill was $\$400$.
And the first late charge was 1% of that, so it was $\$4$.
Right, and the total is now $\$404$.
Now we need to add 1% of the total for the second late charge.
Which is $\$4.04$.