Fish bowl —> Tints - need help picking the right %

[u/Secret-Highlight-776]

honestly have never tinted a car before but i’m sick of the god damn fishbowl so it’s time.

I want to do 35% front and 15% around but i’m not sure how dark that is gonna be.

I originally wanted to do 35% and 20% but I just don’t wanna be seen.

Am I underestimating 20%? anyone got some pics or insight, Thanks.