1.As we all know In his heart freeza feared the saiyans he wanted to SLIGHTLY exagerate his powerlevel so that Gohan and vegeta couldnt have confidence he is simply trying to intimidate the z senshi so that no one would have confidence and the slightest chance there is a group of fans that actually believs he is lying you know. 2.he could be refering to his fourth form 100% form his maximum power in the series