Attached is a link on how to do a leak down test and what the results mean as the results you posted above don't look very good.
Compression test should be close to 150 psi, leakage should be in the range of 10-20 percent. Your values were about 50 psi on compression and about 98 percent loss on the leakdown. If you meant 2 percent, that would be a rare event as really good engines leakdown more like 10.
If you take the values you presented as fact, then it would be highly advisable to tear the engine down as it is headed for a catastrophic fail costing you a lot more than earlier intervention.
Here is the link..........
How to do Cylinder Leak Down Testing- Car Craft Magazine