According to the NY Post, as of Nov 16, he’s gone to home to Delaware 25 times since inauguration, not counting a few weekends to Camp David for the weekend
At a cost of $3 million for security alone, not counting the cost of AF1 and Marine 1 and the cost of transporting The Beast, the extra Beast and the fleet of armored SUVs
By my rough mouth he will have been an office for about 48 weeks. If we count camp David weekends that means he has left the White House more than half of his time in office to go home. Some of those may be reasonable, such as Thanksgiving or Christmas. Imagine if Trump went to Mar-a-Lago 25 times, the press would never live it down.