Please answer the followings: Revenue share FOR Groupon GP per one voucher sold and redeemed Contribution margin per one voucher sold and redeemed EBITDA per one voucher sold and redeemed EBITDA for all vouchers sold and redeemed EBITDA for all vouchers sold but not redeemed EBITDA for the total promotion Voucher Value: Voucher Price Revenue Share Terms Average transaction for vouchers redeemed COGS Credit card fees Operating Fixed Cost Refunds 2% 3% 100 80% 90% Number of vouchers offered Number of Vouchers sold Number of Vouchers redeemed: GROUPON $25 for $50 Worth of Innovative Products from Brookstone 93% or 148 customers Brookstone $25 BUY $50 50% $25 a2 days 13:43:23 Over 420 bought GROUPON e 9 Boston, MA