RM1.80 One Milo

Today I is to see newspaper saying if the mamak is to charge the Milo more than 1.80 one cup, then, the government is to fine them. Well, I is to taught that, if the mamak to charge back the same to their customer 1.80 one cup of milo, but they put less powder of milo, is it not same? is the government to messure every cup of the milo and fine them? if they put more ice than normal, is them is to be fine too?