Add CAGR calculation script within math folder (#965)

* Add CAGR calculation script within math folder.

* Update calculate-CAGR.sh with descriptive naming

Co-authored-by: Thiago Holanda <unnamedd@gmail.com>

---------

Co-authored-by: Thiago Holanda <unnamedd@gmail.com>

commands/math/calculate-CAGR.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Required parameters:
+# @raycast.schemaVersion 1
+# @raycast.title Calculate CAGR Percentage
+# @raycast.mode compact
+# @raycast.packageName Math
+
+# Optional parameters:
+# @raycast.argument1 { "type": "text", "placeholder": "From" }
+# @raycast.argument2 { "type": "text", "placeholder": "To" }
+# @raycast.argument3 { "type": "text", "placeholder": "Years" }
+
+# Documentation:
+# @raycast.author Samuel Barton
+# @raycast.authorURL https://github.com/samueldbarton
+# @raycast.description Calculate the CAGR between "from" and "to" values over given "years," then copy the result.
+
+CAGR=$(echo "scale=4; e( l($2 / $1) / $3 ) - 1" | bc -l)
+CAGR=$(echo "scale=2; $CAGR * 100" | bc -l)
+CAGR=$(printf "%.2f" "$CAGR")
+echo "$CAGR" | pbcopy
+echo "The CAGR from $1 to $2 over $3 years is $CAGR%. CAGR copied to clipboard."