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In the fourth quarter of last year, Colditz Company embarked on a major effort to improve productivity. It redesigned products,

reengineered manufacturing processes, and offered productivity improvement courses. The effort was completed in the last quarter of

the current year. The controller's office has gathered the following year$-$end data to assess the results of this effort:

Required

Prepare a summary contribution income statement for each of the $2$ years, and calculate the change in operating income.

Compute the partial operational productivity ratios for each production factor in each year.

Compute the partial financial productivity ratios for each production factor in each year.

Complete this question by entering your answers in the tabs below.

Complete this question by entering your answers in the tabs below.

Required $1$

Prepare a summary contribution income statement for each of the $2$ years, and calculate the change in operating income. Complete this question by entering your answers in the tabs below.

Required $1$

Required $2$

Required $3$

Compute the partial operational productivity ratios for each production factor in each year. $($Round your answers to $4$ decimal

places.$)$ Complete this question by entering your answers in the tabs below.

Required $1$

Required $2$

Required $3$

Compute the partial financial productivity ratios for each production factor in each year. $($Round your answers to $4$ decimal

places.$)$