The percentage discount Ryan is offering is 34%.
The percentage increase in passenger travel is 125%.
The sales for the new year is $147,510.
Janice's loss if she cancels one round trip is $41.25.
The number of cancellations that can be expected is 7.
Percent discount = (change in price of round trip / price of a round trip before discount) x 100
Percent discount = ($85 / $250) X 100 = 34%
Percent increase = (change in number of passengers / initial passengers) x 100
(900 - 400) / 400 x 100 = 125%
The sales for the new year = penalty fare for those who cancelled + total revenue from those who do not cancel.
Penalty fare for those who cancelled = 9/10 ( 0.01 x 900) = 8 people would cancel
25/100 x 8 x $165 = $330
Total revenue from those who do not cancel = (900 - 8) X $165 = $147,180
The sales for the new year = $147,180 + $330 = $147,510
Loss = 25/100 x $165 = $41.25
8 - 1 = 7
To learn more about how to calculate discounts, please check: https://brainly.com/question/26061308