George Kyparisis makes bowling balls in his Miami plant. With recent increases in his costs, he has a newfound interest in efficiency. George is interested in determining the productivity of his organization. He would like to know if his organization is maintaining the manufacturing average of a $3\%$ increase in productivity. He has the following data representing a month from last year and an equivalent month this year:Part $2$ Last YearNowCost Per Input UnitUnits Produced $1$ comma $0001$ comma $000$Labor $($hours$)280255$$$10$ per hourResin $($pounds$)5045$$$5$ per poundCapital Invested $($$$)9$ comma $00010$ comma $0001\%$ per monthEnergy $($BTU$)3$ comma $0002$ comma $850$$$0\mathrm{.}50$ per BTU Part $3$The percent change in productivity for one month last year versus one month this year on a multifactor basis with dollars as the common denominator $=$ enter your response here$\%($enter your response as a percentage rounded to two decimal places$).$