Answer :
50 seats = 25% = 1/4
100 seats = 50% = 2/4
150 seats = 75% = 3/4
200 seats = 100% = 4/4 <------ Logical pattern emerges.
100 seats = 50% = 2/4
150 seats = 75% = 3/4
200 seats = 100% = 4/4 <------ Logical pattern emerges.