WB error histogram not working

Have an Lc1 wideband through the EGR on my 97 fbird. I have the histogram working for the Wideband but I cannot get the actual % error from commanded histogram to work. I am displaying everything I need, but it only will display zeroes. My wideband inputs into the histogram perfect using ([PID.2811]/.332)+7.35 I used the ([[PID.2811]/.332+7.35]-[[SENS.121]])/[[SENS.121]]*100 in as shown in the pictures and ive tried it a few ways but nothing works. Even have a histogram to show the commanded AFR so that works. Any thoughts?

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