What is the percentage of change in depression in freezing point value when 0.01 M aqueous solution of ${\text{K}}_{\text{4}}\left[\text{Fe }{\left(\text{CN}\right)}_{\text{6}}\right]$ is added to equal volume of 0.01 M aqueous solution of ${\text{CuCl}}_{\text{2}}$? (Assume Molality of every aqueous ion is numerically equal to molarity after mixing up of two solutions as well for 0.01M  ${\text{CuCl}}_{\text{2}}$ solution and complete ionization of electrolytes and completion of reactions). Report answer to nearest integer.