A student multiplied a number by 3/5 instead of 5.3. What is the percentage error in the calculation?

A student multiplied a number by 3/5 instead of 5.3. What is the percentage error in the calculation? Correct Answer 64%

Let, number = x Actually multiplied by 53 then the value is  = 5x3But instead it  = 3x5So, the error distance  = 5x3 - 3x5 = 16x155x3 , Error  = 16x151 " " "  = 16x×315×5x = 64%
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