A friend asks if you want to go see the new Avengers movie but you say it's too expensive."No it's not, tickets have only gone up $2.00 since last year,"says your friend.You reply, "tickets went from $8 to $10 for a matinee. That is a large percentage increase.What formula would provide the percentage increase?

a. = (10 - 8) / 8 * 100 b. = (10 - 8 / 8) * 100 c. = (10 - 8) / 10 * 100 d. = 10 - 8 / 8 * 100