No, 663 and 666 are.
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665
30% of 665= 30% * 665= 0.3 * 665= 199.5
13.49% of 665= 13.49% * 665= 0.1349 * 665= 89.7085
231
There are 3 feet in one yard. Therefore, 665 feet is equal to 665 / 3 = 221.6 recurring (that is, 221.6666... or 221 and two thirds) yards.