Resource plan in Placker will show you for each working day, how many hours each member is working.
This is defined by the number of hours of each card, which by default is 8 hours a day. However, a single member could be assigned to 2 cards simultaneously. In this case, the total of working hours would be 16.
This is an important insight to the manager, who can make decisions based on these findings. For example, assigning this card to somebody else, waiting for one card to finish before the other can start, or even keep the resource plan that way.
Enable resource plan by clicking Check Plan on the top menu, then Show resource plan.
The option Show by full work days will round all the numbers to the default number of working hours, which by default is 8.