Comment 37(o)(4)(i)(C):
1. Rounding of the total monthly payment. Section 1026.37(o)(4)(i)(C) requires the total monthly payment amount disclosed under § 1026.37(c)(2)(iv) to be rounded if any of its components are rounded. For example, if the total monthly payment disclosed under § 1026.37(c)(2)(iv) is composed of a $2,000.49 periodic principal and interest payment required to be disclosed by § 1026.37(c)(2)(i) and a $164.49 periodic mortgage insurance payment required to be disclosed by § 1026.37(c)(2)(ii), the creditor would calculate the total monthly payment by adding the exact periodic principal and interest payment of $2,000.49 and the rounded periodic mortgage insurance payment of $164, round the total, and disclose $2,164.
Your calculation, then, is the exact monthly payment of $236.51 plus the rounded escrow figure of $162, or $398.51, which should be rounded to $399. Your system is displaying the wrong result.