Special thanks to Excel experts at mrexcel.

Excel formula for calculating the number of digit returns from the previous drawing.

For example:

if in cells a1, b1, c1

2 0 0

if in cells

0 2 2

In cell d1 enter the following formula:

=SUMPRODUCT(IF(COUNTIF(A1:C1,{0,1,2,3,4,5,6,7,8,9}) <COUNTIF(A2:C2,{0,1,2,3,4,5,6,7,8,9}),COUNTIF(A1:C1,{0,1,2,3,4,5,6,7,8,9}),COUNTIF(A2:C2,{0,1,2,3,4,5,6,7,8,9})))

Then press the following keys at the same time (Control - Shift - Enter) on your keyboard.  You should see { } at the beginning and end of the formula.