MATH
posted by Maddi Jane <3 .
a collectible comic book worth $40 two years ago gained 15% in value the next year, but then lost 15% in value this year what is it worth now?

40 * 1.15 = 46
46  (46 * 0.15) = ? 
thanx ms.sue haha my manager does not know how to do any of this! i asked him for help but he doesn't get it.. so thank you! oh and the answer is $39.10!