Church & Dwight Co. Inc. posted a better-than-expected 6% rise in quarterly profit as price increases helped offset higher costs, and it nudged up its profit forecast for the full year. The maker of Arm & Hammer baking soda also said it plans to increase spending in the second half of the year. Second-quarter profit rose to $36.4 million, or 54 cents per share, from $34.4 million, or 51 cents per share, a year earlier. For the full year, the company now expects to earn $1.95 per ...