matter_net_exp "Using the Math Statement on the next tab: The total for pre-split non-taxable expense items on the bill + The total for pre-split Tax1 expense items on the bill + ... repeated for each pre-split tax expense items on the bill + The total for post-split non-taxable expense items on the bill + The total for post-split Tax1 expense items on the bill + ... repeated for each post-split tax expense items on the bill tax_total_detail_exp "