You purchased 1000 shares of bundaberg mining five year ago at 50$ per share. today, this company is trying to decide whether to repurchase its shares at 70$ per share through a fixed price tender offer or pay 70$ cash dividend per share. If capital gains are taxed at 15% rate, then at what rate must dividends be taxed for you to be indifferent between receiving the dividend and selling your shares back to company?