State with reason whether the following transactions will increase, decrease or not change the ‘Return on Investment’ Ratio: (i) Purchase of machinery worth Rs. 10,00,000 by issue of equity shares. (ii) Charging depreciation of Rs. 25,000 on machinery. (iii) Redemption of debentures by cheque Rs. 2,00,000. (iv) Conversion of 9% Debentures of Rs. 1,00,000 into equity shares.