Answer:
It grew by 500% meaning it grew on average 83.333% per week
Explanation:
To find the percent growth you divide the end weight by the starting weight:
However, that is the percentage in decimal form. To convert that number to a percentage move the decimal place to the right 2 places. This results in 500%
To get the average weekly growth weight, simply divide the 500% by the amount of weeks (6). This then gives the 83.333% per week.
Note: I didn't know which answer you were looking for. That is why there are 2.