(Holding-period returns) From the price data that follow, compute the holding-period returns for periods 2 through 4.

Period Stock Price

1 $ 8

2 10

3 9

4 18

The holding period return in period 2 for the stock is ______%(round to two decimal places)

The holding period return in period 3 for the stock is ______%(round to two decimal places)

The holding period return in period 4 for the stock is ______%(round to two decimal places)