The chess club had 14 members at the beginning of the year and the membership increased by 50% by the end of the year?

Question

a: how many members were there at the end of the year?
b: By the end of the next year there were only 14 members. What percent decrease was this?

Answer 1

1.5 * 14 = 21

b.

21 - 14 = 7

7/21 = 0.33333 = 33.3%

Answer 2

a) 1.50*14=?
b) 14=21(1+i)
2/3= 1+i
i=-1/3 or 33.3 percent decrease