Question

If 1800 go to a football match and 46% leave at halftime, how many people are left in the stadium

Answer 1

100%-46%=54%
54% of 1800= 1800×54\100
=972

Answer 2

972 people will be left in the stadium.
If 100% is 1800 then
46% is ?
Cross multiply and divide
Gives you 828 which is 46% of the people who left.
Remaining is 1800-828 = 972