Total number of gumballs in the gumball machine = 
23 + 52 + 34 + 61 + 30 = 200
% of the gumballs being red = 52/200 * 100
                                                  = 52/2
                                                 <u> = 26 %</u>
Hence, <u>26% of the gumballs</u> are red in the gumball machine
 
        
                    
             
        
        
        
Indigenous bookkeeping is also known as a "single entry system"