Part numbers are nine digits long and ending with the year, starting in B2. Evan wants to change the year from 2021 to 2022. How will he do this if some of the part numbers include 21 before the year? with the formula =SUBSTITUTE(B2,"21","22") with the formula =REPLACE(B2,9,2,"22") with the formula =SUBSTITUTE(B2,"21","22",2)