Theoretical Yield/Actual Yield Chemistry Question?

Benzaldehyde undergoes a reaction catalysed by cyanide ions to produce benzoin. 2 Molecules of benzaldehyde produces one molecule of benzoin. If 18.3g of benzaldehyde is used and the percent yield is 30.9%, how many grams of benzoin would be produced? The molar mass of benzaldehyde is 106.12 and for benzoin is 212.24.