Tweak variable names, update documentation

Author: bryaningl3

docs/content/release_notes.md

@@ -1,5 +1,10 @@
 # Release Notes
 
+## 5.26.0
+**New Features**
+
+* Added `previousPriceChange` and `previousPriceChangePercent` attributes to `Quote` object.
+
 ## 5.25.1
 **Bug Fixes**
 

docs/content/sdk/lib-marketstate.md

@@ -554,6 +554,10 @@
         * [.previousPrice](#QuotepreviousPrice)
         * [.time](#Quotetime)
         * [.timeUtc](#QuotetimeUtc)
+        * [.priceChange](#QuotepriceChange)
+        * [.priceChangePercent](#QuotepriceChangePercent)
+        * [.previousPriceChange](#QuotepreviousPriceChange)
+        * [.previousPriceChangePercent](#QuotepreviousPriceChangePercent)
 
 
 * * *
@@ -959,6 +963,58 @@
 | timeUtc | <code>Date</code> \| <code>null</code> | <p>A timezone-aware version of [time](#quotetime). This property will only have a value when both (a) the exchange timezone is known; and (b) the client computer's timezone is known.</p> |
 
 
+* * *
+
+### quote.priceChange :id=quotepricechange
+**Kind**: instance property of [<code>Quote</code>](#Quote)  
+**Access**: public  
+**Read only**: true  
+**Properties**
+
+| Type |
+| --- |
+| <code>Number</code> \| <code>null</code> | 
+
+
+* * *
+
+### quote.priceChangePercent :id=quotepricechangepercent
+**Kind**: instance property of [<code>Quote</code>](#Quote)  
+**Access**: public  
+**Read only**: true  
+**Properties**
+
+| Type |
+| --- |
+| <code>Number</code> \| <code>null</code> | 
+
+
+* * *
+
+### quote.previousPriceChange :id=quotepreviouspricechange
+**Kind**: instance property of [<code>Quote</code>](#Quote)  
+**Access**: public  
+**Read only**: true  
+**Properties**
+
+| Type |
+| --- |
+| <code>Number</code> \| <code>null</code> | 
+
+
+* * *
+
+### quote.previousPriceChangePercent :id=quotepreviouspricechangepercent
+**Kind**: instance property of [<code>Quote</code>](#Quote)  
+**Access**: public  
+**Read only**: true  
+**Properties**
+
+| Type |
+| --- |
+| <code>Number</code> \| <code>null</code> | 
+
+
 * * *
 
 ## Schema :id=schema

lib/marketState/MarketState.js

@@ -281,19 +281,19 @@ module.exports = (() => {
 			const previousPrice = quote.days[0].lastPrice;
 			const previousPreviousPrice = quote.days[0].previousPrice;
 
-			let priceChange = null;
-			let priceChangePercent = null;
+			let previousPriceChange = null;
+			let previousPriceChangePercent = null;
 
 			if (is.number(previousPrice) && is.number(previousPreviousPrice)) {
-				priceChange = previousPrice - previousPreviousPrice;
+				previousPriceChange = previousPrice - previousPreviousPrice;
 
 				if (previousPreviousPrice !== 0) {
-					priceChangePercent = priceChange / Math.abs(previousPreviousPrice);
+					previousPriceChangePercent = previousPriceChange / Math.abs(previousPreviousPrice);
 				}
 			}
 
-			quote.previousPriceChange = priceChange;
-			quote.previousPriceChangePercent = priceChangePercent;
+			quote.previousPriceChange = previousPriceChange;
+			quote.previousPriceChangePercent = previousPriceChangePercent;
 		};
 
 		const _processMessage = (message, options) => {