Step 1: Subtract the measured distance and the actual distance to calculate the error. Step 2: Divide the given value by the actual distance and convert it into the percentage.
the actual distance is 612 ft the measured distance is 735 ft
Step 1: 735 ft - 612 ft = 123 ft Step 2: 123 ft / 612 ft = 0.20 = 20/100 = 20%