week_june8_validation.ex

case Decimal.round(Decimal.sub(total_merch_rev, total_group_costs), 2) ==
           Decimal.round(Decimal.cast(0), 2) do
      true ->
        case net_revenue_shared == Decimal.cast(0) do
          true ->
            changeset

          false ->
            add_error(
              changeset,
              :net_revenue_shared,
              "must be total_merch_rev minus total_group costs"
            )
        end

      false ->
        case Decimal.round(Decimal.sub(total_merch_rev, total_group_costs), 2) ==
               Decimal.round(net_revenue_shared, 2) do
          true ->
            changeset

          false ->
            add_error(
              changeset,
              :net_revenue_shared,
              "must be total_merch_rev minus total_group costs"
            )
        end
    end