From the first pie chart (600 employees), bananas = 25% of 600 = 150 people.<br>
From the new office (200 employees), bananas = 40% of 200 = 80 people.<br><br>
Total who prefer bananas = 150 + 80 = 230 out of 800.<br>
Percentage = (230 ÷ 800) × 100 = 28.75%.<br><br>
Final Answer: 28.75