Hi, 

My dataframe has two columns one with area and other with percent. How can i add the areas that are within a range of percentage??

My dataframe looks like
Area Percent
456       0

3400      10

79          25

56           18

467         0

67          67

839        85

1120      0

3482      85

I want to add the area for values whose percent is <0, 0-25, 25-50, 50-75, >75. How can I do that???
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