Which of the following is adjusted every year for inflation

a. tax rates
b. tax brackets
c. sales taxes
d. taxes preparers

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: last year now cost per input unit units produced 1 comma 2001,200 1 comma 2001,200 labor​ (hours) 300300 275275 ​$1212 per hour resin​ (pounds) 5050 4545 ​$55 per pound capital invested​ ($) 10 comma 00010,000 11 comma 00011,000 22​% per month energy​ (btu) 2 comma 9002,900 2 comma 7502,750 ​$0.600.60 per btu 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​ = 3.153.15​% ​(enter your response as a percentage rounded to two decimal​ places).