Thanks Chenbeier. Here is an extract of the article, I'm not sure I've communicated it effectively.
'In a typical procedure all reactions were performed on a 1
mmol scale. The substrate was generally dissolved in 10 ml of
EtOH, 10 mol% of the catalyst was added and the mixture
degassed twice under vacuum (using a water pump) and
refilling with hydrogen each time.'
The catalyst in this reaction is 5% Pd/C. In other reactions the catalyst varied between 5% Pd/CaCO3, 5% Pd/Al2O3, 10% Pd/C etc. Can you see where the confusion comes in? I feel like I'm dealing with a percentage of a percentage, just want to make sure I get it right.