Find the difference between the two, which is three yards. From this, you then divide the first one (15) by three, to get 5. 1/5 = 20%, therefore, the percentage change is 20%
20% ;
The percent change from 15 yards to 18 yards is 20%. This is calculated by finding the difference between the two values, which is 3 yards, and then dividing by the original value of 15 yards before multiplying by 100%.
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