Tata Steel ltd calculated its Economic Value Added (EVA) for two periods ending March 2011 and November 2011. Key details: - NOPAT for period ending March 2011 was Rs. 6,056.61 crore - Cost of operating capital employed for same period was Rs. 3,671.438 crore - Resulting EVA for period ending March 2011 was Rs. 2,385.17 crore - NOPAT for period ending November 2011 was also Rs. 6,056.61 crore - However, cost of operating capital employed increased to Rs. 6,487.224 crore - Consequently, EVA for period ending November 2011 was negative at Rs.