Church & Dwight Co., Inc.’s organic sales growth for 2015 was 3.6%, driven by volume growth of 3.1% and 0.5% price and product mix.   “We are very pleased with the superior business results we delivered in 2015,” said Matthew Farrell, CEO.  “We delivered top tier results within the consumer packaged goods industry including full year organic sales of 3.6%, expanded gross margin by 40 basis points and delivered adjusted earnings growth of 8.0%. We increased our marketing spend in 2015 in s...