IMPORT PO calculation

please let me know if my understanding is correct

1. JEDB or basic custom duty is calculated on the Assesable value

2 CVD is calculated on sum of assesable value and the custom duty

3. Education cess is calcualted on the CVD

4. SECESS is calculated on the CVD

5. Cess on custom duty is calculated on the sum of (cutom duty+ CVD+Ecess on cvd + Secss on CVD)

6. SCESS on custom duty is claculated on the sum of (cutom duty+ CVD+Ecess on cvd + Secss on CVD)

7. JADC or SAD is calcualted on the sum of 1 to 6 + Assesable value.

also let me know which Taxes are recoverable in case of import procurement.