yes, the $100m is USD, so the multiple is as well. then convert to AUD or say $AU 700m.
what did Siemens just pay for Varian ? $16.4B
https://www.medtechdive.com/news/varian-sold-to-siemens-healthineers-in-164b-all-cash-deal/582753/#:~:text=Siemens%20Healthineers%20will%20buy%20radiation,confirming%20a%20Bloomberg%20report%20Saturday.&text=The%20companies%20expect%20the%20deal,first%20half%20of%20next%20year.
