Mr. and Mrs. Chaulk have three dependent children, ages 3, 6, and 9. Assume the taxable year is 2021. Required: Compute their child credit if AGI on their joint return is $90,300. Compute their child credit if AGI on their joint return is $464,700. Compute their child credit if AGI on their joint return is $198,000 and assume that they have one non-child dependent who meets the requirements for the child credit.