I have prepared a land cover map, converted to a polygon and merged individual polygons in the various classes forming 10 classes. Now i want to find the percentage of each of the polygons. I used the statistics tool in Analysis, Arctool box to sum up the polygons but cannot join it to the main table because the objectID does not have any corresponding value in the main table. I am sure this is a simple thing, but somehow i am stack. I will welcome your suggestions.