Before a renovation, a movie theater had 113 seats. after the renovation, the theater has 163 seats. what is the approximate percentage increase of the number of seats in the theater? a 30.6% b 49.7% c 44.2% d 31%

To solve this problem you can make a rule of three and find the percentage of increase 
 113 ---> 100
 163 ---> x
 Clearing x we have
 x = (163/113) * (100) = 144.25
 Then, the percentage of growth is
 144.25-100 = 44.25
 answer
  the approximate percentage increase of the number of seats in the theater 44.25%
 C 44.2%

Ithink the answer is a