Answer: The original cost was $27,400.
Step-by-step explanation:
Since we have given that
Amount he paid for a delivery van = $35,620
Rate of markup = 30%
We need to find the cost.
Let the cost of delivery van would be 'x'.
So, Amount of markup would be

Amount after mark up would be

According to question, it becomes,

Hence, the original cost was $27,400.