Before a renovation, a movie theater had 140 seats. After the renovation, the theater has 204 seats. What is the approximate percentage increase of the number of seats in the theater? If necessary, round to the nearest tenth of a percent. A.
64.4%
B.
31.5%
C.
20%
D.
45.7%

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

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