Without China's progress, developing countries' number of hungry people decreased 7% since 1
Developing countries POU: 994.1 - 790.7 = 203.4 [number of undernourished people in 1990 minus number of undernourished people in 2014]
China's POU: 288.9 - 150.8 = 138.1 [number of undernourished people in 1990 in China minus number of undernourished people in 2014]
203.4 - 138.1 = 65.3 [Reduction in developing countries minus reduction in China]
(65.3/994.1) x 100 = 6.56% [reduction of undernourished people without China divided by the total number of undernourished people in developing countries in 1990]
Food and Agriculture Organization of the United Nations, "The State of Food Insecurity in the World: Strengthening the Enabling Environment for Food Security and Nutrition," (Rome, 2014): 40-42, http://www.fao.org/3/a-i4030e.pdf.