Below is an instruction that describes a task. Write a response that appropriately completes the request in French. Please answer in French.

### Instruction:
 Luke started working on a 1000-piece jigsaw puzzle. The first day he worked on it, he put together 10% of the pieces. On the second day, he put together another 20% of the remaining pieces from the first day. On the third day, he put together 30% of the remaining pieces from the previous day. How many pieces does he have left to complete after the third day?


### Response:
 Jour 1 : 1000(.10) = 100 pièces
1000 - 100 = 900 pièces
Jour 2 : 900(.20) = 180 pièces
900 - 180 = 720 pièces
Jour 3 : 720(.30) = 216 pièces
720 - 216 = 504 pièces