diff --git a/mba/ch50.org b/mba/ch50.org
index 924c423..a334bad 100644
--- a/mba/ch50.org
+++ b/mba/ch50.org
@@ -95,6 +95,19 @@ Calculate YOY for *Revenue*:
 | 2019 | ₪999,600,000.00   | \((999,600,000 - 661,500,000) / 661,500,000 \times 100 = 51\%\) |
 | 2020 | ₪1,399,440,000.00 | \((1,399,440,000 - 999,600,000) / 999,600,000 \times 100 = 40\%\) |
 
+
+*** Updated Financial Table
+| Year                              |       2015 |        2016 |         2017 |         2018 |         2019 |           2020 |
+|-----------------------------------+------------+-------------+--------------+--------------+--------------+----------------|
+| Revenue                           | ₪2,000,000 | ₪20,000,000 | ₪350,000,000 | ₪661,500,000 | ₪999,600,000 | ₪1,399,440,000 |
+| COGS (Cost of Goods Sold)         | ₪1,800,000 | ₪16,000,000 | ₪175,000,000 | ₪264,600,000 | ₪299,880,000 |   ₪279,888,000 |
+| Gross Profit                      |   ₪200,000 |  ₪4,000,000 | ₪175,000,000 | ₪396,900,000 | ₪699,720,000 | ₪1,119,552,000 |
+| Gross Margin %                    |        10% |         20% |          50% |          60% |          70% |            80% |
+| YOY                               |          0 |        900% |        1650% |          89% |          51% |            40% |
+|-----------------------------------+------------+-------------+--------------+--------------+--------------+----------------|
+| *Gross Profit = Revenue - COGS*   |            |             |              |              |              |                |
+| *GM pct = Gross Profit / Revenue* |            |             |              |              |              |                |
+
 *** Uses of YOY
 1. *Revenue Growth*: Are sales increasing year over year?
 2. *Expense Management*: Are costs growing faster than revenue?
@@ -102,11 +115,16 @@ Calculate YOY for *Revenue*:
 4. *Operational Insights*: Are marketing or R&D expenses increasing efficiently year over year?
 
 ** taxes and interest
-|           | 2015 | 2016 |          2017 |
-|-----------+------+------+---------------|
-| Interest  |      |      |    ₪85,000.00 |
-| Tax       |      |      | ₪4,250,000.00 |
-| % of EBIT |      |      |        24.29% |
+|                               | 2015       | 2016         | 2017          |
+|-------------------------------+------------+--------------+---------------|
+| Revenue                       | ₪2,000,000 | ₪20,000,000  | ₪350,000,000  |
+| COGS (Cost of Goods Sold)     | ₪1,800,000 | ₪16,000,000  | ₪175,000,000  |
+| Gross Profit (Revenue - COGS) | ₪200,000   | ₪4,000,000   | ₪175,000,000  |
+| Total Operating Expenses      | ₪5,000,000 | ₪28,000,000  | ₪157,500,000  |
+| EBIT (Gross Profit - TOE)     | -₪4,800,00 | -₪24,000,000 | *₪17,500,000* |
+| Interest                      |            |              | ₪85,000.00    |
+| Tax                           |            |              | ₪4,250,000.00 |
+| % of EBIT                     |            |              | 24.29%        |
 
 *** % of EBIT formula
 \[