NB: process for determining the colour difference:

step 1: set the layout as 'show rulers and gridlines'
step 2: collect the 'before' and 'after' photo for egg 1
step 3: paste them onto paint, making sure that they are aligned
step 4: using the 'colour picker' tool, set and right click on the 300 x 200 margin this colour should be saved to "color 1"
click on "edit colors" and record the 'red, green and blue' numbers
step 5: using the 'colour picker' tool, set and left click on the 1000 x 200 margin this colour should be saved to "color 2"
click on "edit colors" and record the 'red, green and blue' numbers
step 6: record the results in the table
step 7: complete steps 2-6 for the remaining eggs


pictures to demonstrate what i mean:

steps 1-3:step 4: