Calculate the trade-off cost between two investments.
Investment 1 value: $100
Investment 2 value: $80
The trade-off cost between the two investments is $20. This represents the opportunity cost of choosing one investment over the other, which in this case is the difference in their values.
Complete the following task based on the instruction and optional input provided.### Instruction:
Calculate the trade-off cost between two investments.

### Input:
Investment 1 value: $100
Investment 2 value: $80

### Output:
The trade-off cost between the two investments is $20. This represents the opportunity cost of choosing one investment over the other, which in this case is the difference in their values.