Why do "Actual Sales Increase (ASI)" and "Sold from moved" most of the times mismatch?

Each one is related to a different concept:

ASI is the real sales (blue line) minus the estimated sales in the event in which no transfers were made.

Sold from implemented is the number of units sold from units moved. 

Therefore, the ASI increases when we sell after moving units and decreases when stock at sending stores runs out. Zero stock at sending stores means we could be losing sales, and it is calculated in a daily forecast multiplied by the number of days without stock up to an amount equal to the original stock (stock before transfer) of the sending store.

For the rest of the cases, real sales and sales in the event in which a store transfer was not made vary in the same way and therefore have no impact on ASI.

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Estimated sales increase

Actual sales increase and Sold from moved