Where Is The Rest???

I know my English is very bad, suka suka hati got past tense or present tense. Add Malay or Hockian in sentences or ing, es, ? ! when every I like!
But what ever is that spelling wrong or the grammar wrong also never mind, The most important thing is you don't MISS OUT a word!!! Just because you missed typing the discount it make the whole sentences to another meaning liao.... 

 So SY! May I know where is the rest 80% of the cake go??? 
Is this what you mean 20% on cake for mother day???? LOL.......
Me so Bad......!!!!