Creating Y-o-Y percentage change pivot table

Creating Y-o-Y percentage change pivot table

Good Afternoon,

Below is a small excerpt of monthly data compiled over the past two years.  Would you be able to help me with a formula which may provide me with a monthly year-over-year percentage change for each of the columns? I'm stumped.

Month Run OnOff Minneapolis Minneapolis-UofM MSP Airport St. Paul  St. Paul Amtrak MOA
1/1/2013 711 Off 3
1/1/2013 711 On 68
2/1/2013 711 On 76 3 7
2/1/2013 711 Off
3/1/2013 711 On 96 9 19
3/1/2013 711 Off 3
2/1/2013 712 Off 40 2
2/1/2013 712 On
3/1/2013 712 Off 47 4 12
1/1/2013 712 On
1/1/2013 712 Off 47 5 2
3/1/2013 712 On
1/1/2012 901 Off 23 75 3
1/1/2012 901 On 101
1/1/2013 901 On 1 4
1/1/2013 901 Off
2/1/2013 901 On 5 37 5
2/1/2013 901 Off
3/1/2013 901 On 56 50 16
3/1/2013 901 Off
1/1/2012 902 Off 159 33 5
1/1/2012 902 On 121
2/1/2012 902 Off 213
2/1/2012 902 On 37 175 1
3/1/2012 902 Off 274
3/1/2012 902 On 91 181 2
4/1/2012 902 Off 200
4/1/2012 902 On 52 144 4