Question

Help I need a second opinion. Is my answer correct? See pic below.

Answer 1

The increase from 1970 to 1974 is by far the largest in the Chemicals industry.

... (8.2/5.0 - 1)×100% = 64%

Answer 2

You're first one is correct, with the increase of Petroleum being the most at 3.4%

However, the second one is incorrect, because you are finding the percentage increase, or 12.7 - 9.3 = 3.4%

So the second one is 3.4

hope this helps