work on calculations

libs/utils/test/simple-test.ts

@@ -0,0 +1,19 @@
+import { fixedRiskPositionSize } from '../src/calculations/position-sizing.js';
+
+try {
+  console.log('Testing position sizing calculations...');
+
+  const result = fixedRiskPositionSize({
+    accountSize: 100000,
+    riskPercentage: 2,
+    entryPrice: 100,
+    stopLoss: 95
+  });
+
+  console.log('Fixed risk position size result:', result);
+  console.log('Expected: 400 shares');
+  console.log('Test passed:', result === 400);
+
+} catch (error) {
+  console.error('Error:', error);
+}