Feature/improve tick abbreviation function (#1828 )

* Keep the value if value smaller than 1000

* Update changelog

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Improved the activities import for `csv` files exported by _Interactive Brokers_
+- Improved the rendering of the chart ticks (`0.5K` → `500`)
 - Increased the historical market data gathering of currency pairs to 10+ years
 - Improved the content of the Frequently Asked Questions (FAQ) page
 - Improved the content of the pricing page

libs/common/src/lib/chart-helper.ts

@@ -131,5 +131,11 @@ export function getVerticalHoverLinePlugin(
 }
 
 export function transformTickToAbbreviation(value: number) {
-  return value < 1000000 ? `${value / 1000}K` : `${value / 1000000}M`;
+  if (value >= -999 && value <= 999) {
+    return value.toString();
+  } else if (value >= -999999 && value <= 999999) {
+    return `${value / 1000}K`;
+  } else {
+    return `${value / 1000000}M`;
+  }
 }