Last year, sales at a book store increased from $5,000 to $10,000. this year, sales decreased to $5,000 from $10,000. what percentage did sales
increase last year? what percentage did sales decrease this year?
sales increased last year, from $5,000 to $10,000. when sales dropped from $10,000 to $5,000 this year, sales decreased

Highlight all instances of parallel structure. there is no longer any room for hope. if we wish to be free—if we mean to preserve inviolate those inestimable privileges for which we have been so long contending—if we mean not basely to abandon the noble struggle in which we have been so long engaged, and which we have pledged ourselves never to abandon until the glorious object of our contest shall be obtained—we must fight!