if john and susie both collected 87 pieces of candy, and susie takes 13%, how many pieces does john have
Do you mean that they collected 87 peices each or 87 pieces altogether?
anyway
All the lollies put together is 100%
If Suzie gets 13% John gets the rest which will be 100-13% = 87%
So if there are 87 lollies altogether, John gets 87% of 87 = 87/100*87 = 75.69 lollies
+118653 
