Since the fine hasn't been decided by the FTC yet, I am not sure I see the point of declaring a number? For instance, if the FTC was going to be happy with say

Since the fine hasn't been decided by the FTC yet, I am not sure I see the point of declaring a number? For instance, if the FTC was going to be happy with say a $4bn fine, this tells them that FB is happy to pay $5bn. The only reason I can think of is that FB is quite sure the fine wouldn't be less than $5bn (maybe FB is asking for significantly higher), and they are trying to price-anchor it. Maybe this is a way of telling FTC that FB will accept something close to $5bn without any lawsuits or other appeals, don't try to negotiate more?