Study: PS3 Has Highest Percentage Of Connected Consoles

[Seece]

(13,56/78%) numbers of connected PS3 userbase - 10,576,800

(22.75/73%) numbers of connected 360 userbase- 16,607,500

(32.77/54% numbers of connected Wii userbase - 17,695,800

is my math wrong or right? can someone double check