If your post is accurate
Test Prop 100mg/ 20ml that Just means you have 20cc of 100mg prop..
Each cc is 100mg you would inject 1cc eod... I'm about 99% sure this is what you have by your post. . It would say prop 200mg/20ml if it were 200mg per cc..
Trust me I'm about positive is 100mg per cc from what your opening post says
This is exactly what my source sells 100mg/20ml 100 per cc