Macro Variable Syntax Question

So I'm a bit new to writing macros for Roll20 and I have a question concerning using multiple Repeating Resource values in mathematical expressions with each other. What I'm attempting to do is write macros to handle exploration on ships for my upcoming pirate-themed DnD 5e campaign and I'm a bit stuck on this one for calculating Ration Consumption. Here's the macro: !power {{ --name|Ration Consumption --inlinereplace|Rations|@{repeating_resource_$4_resource_right} --inlinereplace|Crew|@{repeating_resource_$3_resource_left} --inlinereplace|Passengers|@{repeating_resource_$6_resource_left} --?? {Select Action|Full Rations,FullRations|Half Rations,HalfRations} == FullRations ?? skipTo*1|FullRations --?? {Select Action|Full Rations,FullRations|Half Rations,HalfRations} == HalfRations ?? skipTo*2|HalfRations --:FullRations| --Total People| [[ [$People] @{repeating_resource_$3_resource_left} + @{repeating_resource_$6_resource_left} ]] --Ration Total| [[ [[ [$Rations] @{repeating_resource_$4_resource_right} - $People ]] --api_setattr*1|_silent _charid @{character_id} _repeating_resource_$4_resource_right|[^Rations] --skipTo*3|EndOfCard --:HalfRations| --Total People *2| [[ [$People] @{repeating_resource_$3_resource_left} + @{repeating_resource_$6_resource_left} ]] --Ration Total *2| [[ [$Rations] @{repeating_resource_$4_resource_right} - ^People.halftotal ]] --api_setattr*2|_silent _charid @{character_id} _repeating_resource_$4_resource_right|[^Rations] --:EndOfCard| }} The error I'm getting is:  Could not determine result type of: [{"type":"L","text":"$People"},{"type":"M","expr":"40+10"}] I will admit that I'm not familiar with the syntax usage for [^Variable] vs [$Variable] and I imagine that probably is the underlying issue. Either way, any help would be much appreciated, thanks!

Oh, I should be clear: the reason that my inlinereplaced values don't show up in the macro is since I tried using them in the formulas first and I was getting an error: SyntaxError: Expected "(", ".", "[", "abs(", "ceil(", "d", "floor(", "round(", "t", "{", [ |\t], [+|\-] or [0-9] but "~" found. So I swapped them out for the direct references. At this point they're more akin to a comment than anything.