Please help again!! ASAP

Answer: The correct answer should be C. 200%
Step-by-step explanation:
Because...
The new number is $60 since that was the highest number and in the latest month out of all of them. And the original number is 20 which was the 20 years in the problem. Finally I got $200 as my percent increase.
* Hopefully this helps:) Mark me the brainliest:)
∫ 234483279c20∫