​Brown's, a local​ bakery, is worried about increased costs particularly energy. Last​ year's records can provide a fairly good estimate of the parameters for this year. Wende​ Brown, the​ owner, does not believe things have changed​ much, but she did invest an additional ​$3,000 for modifications to the​ bakery's ovens to make them more energy efficient. The modifications were supposed to make the ovens at least 20​% more efficient. Brown has asked you to check the energy savings of the new ovens and also to look over other measures of the​ bakery's productivity to see if the modifications were beneficial. You have the following data to work​ with:


Last Year Now
Production​ (dozen) 1,500 1,500
Labor​ (hours) 340 320
Capital Investment​ ($) 15,000 18,000
Energy​ (BTU) 3,200 2,800

Energy productivity increase​ =_______________
Capital productivity increase=_______________
Labor productivity increase = _______________