| rowspan = 3 | [[cost::10,000 USD]] trial || Correct call || +[[cost::20,000 USD]]–[[cost::10,000 USD]] = || +[[cost::10,000 USD]] × 0.5 = || +[[cost::5,000 USD]] | | rowspan = 3 | [[cost::10,000 USD]] trial || Correct call || +[[cost::20,000 USD]]–[[cost::10,000 USD]] = || +[[cost::10,000 USD]] × 0.5 = || +[[cost::5,000 USD]] |