It is always advisable to set aside 5%-10% of the average net income of a person
Explanation:
1. Not Fixed- It is not a standard set of percentage that can be set aside for transportation expenses as income of people varies from person to person for which if has no fixed percentage.
2. Variables-There are many variables that should be taken into consideration which can be the salary of a person and the kin of transportation it take which further can be a private or a public transport.
Hence, as a whole it is advisable to save 5%-10% of the total income keeping above factors in mind.
The author provides an inference context clue to help determine the meaning of the word heavy. The phrase “erupting like great beasts” helps the reader infer that the “heavy electronic beats” coming from basements are quite forceful.