Last year, elsa opened an investment account with 8500 . at the end of the year, the amount in the account had increased by 27.6 . how much is this increase in dollars? how much money was in her account at the end of last year? last year, elsa opened an investment account with . at the end of the year, the amount in the account had increased by . how much is this increase in dollars? how much money was in her account at the end of last year?