The migration ratio is 100 LEND to 1 AAVE, so if you migrate 100 LEND you will end up having 1 AAVE, or if you migrate 1 LEND you will have 0.01 AAVE. You do not need to have an exact amount-- the migration will be performed following that ratio. Some examples for clarification:
- 343,295 LEND to 3432.95 AAVE
- 0.3 LEND to 0.003 AAVE
- 57 LEND to 0.57 AAVE