Changes to Soil pH. If vinegar concentrates are added to the soil instead of being sprayed onto plant foliage, they kill weeds by lowering the soil pH to a level that cannot sustain the plants. Depending on the soil type and the weather, this acidifying effect can take from a few months to a year.
Engagement rate is the percentage of people who saw a post that liked, shared, clicked or commented on it. To see the engagement rate for your posts: 1  At the top of your Page, click Insights. 2  Click Posts. 3  Scroll down to All Posts Published.
Facebook Advertising Costs Also on the Upswing. Globally, Facebook ads cost 21 cents per click in the fourth quarter of 2013 when purchased on a cost-per-click basis. The average cost-per-click for Facebook ads (when purchased on a per-click basis) increased 24% in 2013, world-wide.(this is not a surprise. Popularity always increases costs.The same thing happened with Google and Yahoo! PPC ads, back in the day).lobally, Facebook ads cost 21 cents per click in the fourth quarter of 2013 when purchased on a cost-per-click basis. The average cost-per-click for Facebook ads (when purchased on a per-click basis) increased 24% in 2013, world-wide.