Improve error handling

apps/api/src/app/benchmark/benchmark.service.ts

@@ -31,9 +31,13 @@ export class BenchmarkService {
   ) {}
 
   public calculateChangeInPercentage(baseValue: number, currentValue: number) {
+    if (baseValue && currentValue) {
       return new Big(currentValue).div(baseValue).minus(1).toNumber();
     }
 
+    return 0;
+  }
+
   public async getBenchmarks({ useCache = true } = {}): Promise<
     BenchmarkResponse['benchmarks']
   > {