(2)The most appropriate method referred to in sub-section (1) shall be applied, for determination of arm's length price, in the manner as may be prescribed:[Provided that where more than one price is determined by the most appropriate method, the arm's length price shall be taken to be the arithmetical mean of such prices:Provided further that if the variation between the arm's length price so determined and price at which the international transaction has actually been undertaken does not exceed five per cent. of the latter, the price at which the international transaction has actually been undertaken shall be deemed to be the arm's length price.] [ Substituted by Act 33 of 2009, Section 41, for proviso (w.e.f. 1.10.2009).]