The value of p would be -4.33 or -4 and 2/3.
Divide the current with the previous
18/15 = 1.2
move the decimal point to the right two places to get the percentage
120% is your answer
hope this helps
1/2 of 1/2 of 1/2 = 1/8.
There are 640 acres in a section, so 1/8 section = 80 acres.
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In surveying terms, "SW 1/2 of a section" is not a realistic specification of a piece of property.