Yes this is simple just what is the angle of the whole circle and just subtract from that number.
The answer the this is 0.23 pounds per container
Always find the difference in prices first.
<span>3.45 - 3.20 = $.25 difference </span>
<span>Always divide the difference by the original price. Change this number into a per cent. </span>
<span>.25/3.45 = .07246 = 7.2% decrease </span>