Answer:
A. 4; 3.83 units per hour
B. Increases by 4.44%.
Explanation:
Given that,
Current period:
Output = 160 units
Input = 40 hours
Previous period:
Output = 138 units
Input = 36 hours
A. Current period productivity:
= Current period output ÷ Current period input
= 160 units ÷ 40 hours
= 4 units per hour
Previous period productivity:
= Previous period output ÷ Previous period input
= 138 units ÷ 36 hours
= 3.83 units per hour
B. Percentage change in worker's productivity:
= [(change in productivity) ÷ Previous period productivity] × 100
= [(4 - 3.83) ÷ 3.83] × 100
= (0.17 ÷ 3.83) × 100
= 0.0444 × 100
= 4.44%
Therefore, the worker's productivity increases by 4.44%.