What was the approximate percent increase from...

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What was the approximate percent increase from 2001 to 2002 in the cost of a Sleeping Pod Time Unit (SPTU)?

(1) The average SPTU is 5 minutes long, and costed 65 cents in 2001.

(2) In 2002 the average cost of a SPTU was 2.5 times as much as a 2001 SPTU.

The OA is B.

I need help to solve this DS question. Can any expert assist me with it, please? Thanks.
Source: — Data Sufficiency |