Create question_support_bank.jsonl

data/question_support_bank.jsonl

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+{
+  "question_id": "TEST_PERCENT_001",
+  "topic": "percent",
+  "subtopic": "sequential_change",
+
+  "first_step": "Let the original value be 100 to simplify percentage calculations.",
+
+  "hints": [
+    "Focus on the fact that the second percentage is applied after the first change.",
+    "After a 20% decrease, the value becomes 80% of the original.",
+    "Now apply the increase to the new value, not the original."
+  ],
+
+  "walkthrough_steps": [
+    "Start by letting the original value be 100.",
+    "Apply the first percentage change (decrease).",
+    "Take that result and apply the second percentage change.",
+    "Compare the final value to the original."
+  ],
+
+  "method_explanation": [
+    "Sequential percentage changes must be applied step by step.",
+    "Do not combine percentages directly.",
+    "Always apply each percentage to the current value, not the original."
+  ],
+
+  "common_trap": "Adding or subtracting the percentages directly instead of applying them sequentially."
+}