list - selecting elements from a column based on a range of indices listed in another column on Excel -


not sure if right place, let's have column c of entries , column d of indices of elements in c. now, if wanted select elements in c correspond these indices, how able so, in order subtract each corresponding value values of column? example : d list {100,231,567,789,911} representing row numbers of elements in column c , wanted select, in column, these elements; subtract them 1 @ time, values of column, e.


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