bump gas margin to 20%

src/utils/index.test.ts

@@ -117,9 +117,9 @@ describe('utils', () => {
   })
 
   describe('#calculateGasMargin', () => {
-    it('adds 10%', () => {
-      expect(calculateGasMargin(BigNumber.from(1000)).toString()).toEqual('1100')
-      expect(calculateGasMargin(BigNumber.from(50)).toString()).toEqual('55')
+    it('adds 20%', () => {
+      expect(calculateGasMargin(BigNumber.from(1000)).toString()).toEqual('1200')
+      expect(calculateGasMargin(BigNumber.from(50)).toString()).toEqual('60')
     })
   })
 })

src/utils/index.ts

@@ -58,9 +58,9 @@ export function shortenAddress(address: string, chars = 4): string {
   return `${parsed.substring(0, chars + 2)}...${parsed.substring(42 - chars)}`
 }
 
-// add 10%
+// add 20%
 export function calculateGasMargin(value: BigNumber): BigNumber {
-  return value.mul(BigNumber.from(10000).add(BigNumber.from(1000))).div(BigNumber.from(10000))
+  return value.mul(BigNumber.from(10000 + 2000)).div(BigNumber.from(10000))
 }
 
 const ONE = new Fraction(1, 1)