​Let's consider a simple example of a manufacturing process to calculate Value Time Percentage (VTP). 

1. Value-Adding Activities: - Cutting raw materials to size - Assembling components - Quality inspection of finished products

2. Non-Value-Adding Activities: - Waiting time for the next step - Material handling between workstations - Redoing defective products

Now, let's assume the time taken for each activity in the manufacturing process:

- Cutting raw materials: 30 minutes

- Assembling components: 45 minutes

- Quality inspection: 10 minutes

- Waiting time: 20 minutes

- Material handling: 15 minutes

- Redoing defective products: 25 minutes

Calculate VTP Percentage for the above!