The Trump administration announced that would end the Obama administration's practice of revealing the list of people who visit the White House. This list was useful in letting the public know who President Trump was making deals with.
The administration claimed this move was taken as a security measure and also to save the country $70,000 over the next four years. Since the government is projected to spend roughly $16 trillion over the next four years, the savings will be equal to 0.00000004 percent of projected spending. Alternatively, it will save each person in the country 0.007 cents annually over the next four years.
Another comparison that might be useful is that it costs taxpayers more than $3 million in additional security costs every time that President Trump goes to Mar-a-Lago for the weekend. This means that Trump is saving us an amount equal to 2 percent of the cost of one of his weekend trips by keeping the records of his meetings secret.
Source: See text.