You can change the rental prices on a rental order line if they are incorrect.

Update the price directly on the rental order line.

Standard procedure

1.	Go to Rental order management > Rental orders > All rental orders.
2.	In the list, find and select the desired rental order.
3.	In the list, find and select the desired rental order line.
4.	Click Edit.
5.	In the Rental gross amount field, enter a number.
6.	In the Rental disc. % field, enter a number.
7.	Click Save.