Negligible ROI

Since I never found a suitable way to calculate cash game ROI, from now on I'm going to refer to non-cash ROI simply as ROI. Last night, I had a truly negligible ROI - 2% on the nose. It would have been negative had I not come in first in the 18 player SNG NLHE I played. I'll likely never play a 6 player SNG NLHE again, but I'm really liking the 18 player version.

style flavor buy_in entry players hands entries paid place winnings

SNG   NLHE    17000  3000       9    92      18    4     1   122400
MTT-R NLHE    43500  6500       9    50      58   12    35        0

delta: $2,400
MTT with rebuys NLHE balance: $17,781,500
2017 balance: $18,800,350
balance: $30,218,180