Answer:
Answer is 19%
Explanation:
The girl/boy above answered it right but they added an extra 1! Poor dudes who got this wrong! But its actually increase by 19%!
y=8200(1.19)
y=a(1+r)^x
y=8200(1+0.19)^x
r=0.19
That means its an 19% INCREASE! Hope this helped this info is STRAIGHT OFF THE BACK FROM DELTA MATH! So this IS correct! Hope this helped my loves! Hit that star and that heart button if this helped you out! So other people can see this answer is correct! :P