math
posted by betty .
on november 1, the holiday house store marked up a $50 decoration by 30%. On November 28, the decoration was marked down 10%. It was marked up 20% on sales on December 1. Finally it was marked down 70% on December 26. Find the final selling price

initial price = 50
after 30% markup, 50*1.30
after 10% markdown, 50*1.30*.90
After 20%markup, 50*1.30*.90*1.20
After 70% markdown, 50*1.30*.90*1.20*.30
Fina; price is $21.06