A man multiplies a number by \(\frac{6}{7}\) instead of \(\frac{7}{6}\). Find the percentage of error in the calculation.

30.53% 16.55% 26.53% 22.5%

26.53%

Diff. = \(\frac{7}{6}\) - \(\frac{6}{7}\) = \(\frac{13}{42}\) Error of percentage = \(\frac{13}{42}\) x \(\frac{6}{7}\) x 100 = 26.53 %