UMPI PM and IT Degree plan

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I know you can transfer up to 90cr to UMPI but am still confuse about the attached excel file degree plan.
I downloaded this degree plan attached excel from reddit. 

In the attached excel.
Sophia will be 86
Coursera 58
Which total to 159 credit.

I already have this classes from another university I attended.
Intro to Computer 3 credit
International development studies 6 credit
Human and environment interaction 3
Microeconomics 3 credit
Web development 3 credit
Intro to University 3 credit


1. Am trying not to take extra classes I do not need. Am trying to understand why the total credit in the plan is up to 159 credit and which 90 credit should i take to transfer into UMPI.
2. Do each Coursera class transfer in as 3 credit or more. Does it satisfy one class or multiple.

Thank you