| 
 Note C: Basic and Diluted Earnings Per Share 
  
Basic and diluted earnings per share were calculated as follows: 
  
      
       
         | 
         | 
         | 
         | 
         | 
         | 
         | 
         | 
         | 
         | 
         | 
        
       
           | 
           | 
        For the three months ended  | 
           | 
        
       
           | 
           | 
        August 31,  | 
           | 
        
       
        In millions, except per share amounts  | 
           | 
        2022  | 
           | 
           | 
        2021  | 
           | 
        
       
        Basic earnings per share:  | 
           | 
           | 
           | 
           | 
           | 
           | 
           | 
           | 
        
       
        Net income  | 
           | 
        $  | 
           | 
        379.2  | 
           | 
           | 
        $  | 
           | 
        333.6  | 
           | 
        
       
        Weighted-average common shares outstanding  | 
           | 
           | 
           | 
        360.1  | 
           | 
           | 
           | 
           | 
        360.1  | 
           | 
        
       
        Basic earnings per share  | 
           | 
        $  | 
           | 
        1.05  | 
           | 
           | 
        $  | 
           | 
        0.93  | 
           | 
        
       
        Diluted earnings per share:  | 
           | 
           | 
           | 
           | 
           | 
           | 
           | 
           | 
        
       
        Net income  | 
           | 
        $  | 
           | 
        379.2  | 
           | 
           | 
        $  | 
           | 
        333.6  | 
           | 
        
       
        Weighted-average common shares outstanding  | 
           | 
           | 
           | 
        360.1  | 
           | 
           | 
           | 
           | 
        360.1  | 
           | 
        
       
        Dilutive effect of common share equivalents  | 
           | 
           | 
           | 
        2.3  | 
           | 
           | 
           | 
           | 
        2.7  | 
           | 
        
       
        Weighted-average common shares outstanding, assuming dilution  | 
           | 
           | 
           | 
        362.4  | 
           | 
           | 
           | 
           | 
        362.8  | 
           | 
        
       
        Diluted earnings per share  | 
           | 
        $  | 
           | 
        1.05  | 
           | 
           | 
        $  | 
           | 
        0.92  | 
           | 
        
       
        Weighted-average anti-dilutive common share equivalents  | 
           | 
           | 
           | 
        0.4  | 
           | 
           | 
           | 
           | 
        0.2  | 
           | 
        
       
 
  
Weighted-average common share equivalents that have an anti-dilutive impact are excluded from the computation of diluted earnings per share. 
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