GGMasters - Overlay Edition - It says that stakes will be subject to ‘Adjusted Markup’. What is this?

Adjusted markup is applied to staking in multi-day events as players start with varying amounts of chips. If we did not apply an Adjusted markup, everyone would buy the action from the player with the biggest chip stack, whilst players with smaller stacks would find it difficult to compete, so an Adjusted markup is an algorithm which is applied to make it more expensive to buy stakes in players with larger starting stacks and cheaper in those with smaller stacks.

You must use your skill and judgement to find the best value for your staking money.