diff --git a/src/schema.test.ts b/src/schema.test.ts
new file mode 100644
index 00000000..c6b577de
--- /dev/null
+++ b/src/schema.test.ts
@@ -0,0 +1,22 @@
+import { assertEquals } from '@std/assert';
+
+import { percentageSchema } from '@/schema.ts';
+
+Deno.test('Value is any percentage from 1 to 100', () => {
+  assertEquals(percentageSchema.safeParse('latvia' as unknown).success, false);
+  assertEquals(percentageSchema.safeParse(1.5).success, false);
+  assertEquals(percentageSchema.safeParse(Infinity).success, false);
+  assertEquals(percentageSchema.safeParse('Infinity').success, false);
+  assertEquals(percentageSchema.safeParse('0').success, false);
+  assertEquals(percentageSchema.safeParse(0).success, false);
+  assertEquals(percentageSchema.safeParse(-1).success, false);
+  assertEquals(percentageSchema.safeParse('-10').success, false);
+  assertEquals(percentageSchema.safeParse([]).success, false);
+  assertEquals(percentageSchema.safeParse(undefined).success, false);
+
+  for (let i = 1; i < 100; i++) {
+    assertEquals(percentageSchema.safeParse(String(i)).success, true);
+  }
+
+  assertEquals(percentageSchema.safeParse('1e1').success, true);
+});
diff --git a/src/schema.ts b/src/schema.ts
index d152a0d4..fc7efd01 100644
--- a/src/schema.ts
+++ b/src/schema.ts
@@ -38,4 +38,14 @@ const booleanParamSchema = z.enum(['true', 'false']).transform((value) => value
 /** Schema for `File` objects. */
 const fileSchema = z.custom<File>((value) => value instanceof File);
 
-export { booleanParamSchema, decode64Schema, fileSchema, filteredArray, hashtagSchema, safeUrlSchema };
+const percentageSchema = z.coerce.number().int().gte(1).lte(100);
+
+export {
+  booleanParamSchema,
+  decode64Schema,
+  fileSchema,
+  filteredArray,
+  hashtagSchema,
+  percentageSchema,
+  safeUrlSchema,
+};
diff --git a/src/utils.test.ts b/src/utils.test.ts
deleted file mode 100644
index d89472c6..00000000
--- a/src/utils.test.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-import { assertEquals } from '@std/assert';
-
-import { isNumberFrom1To100 } from '@/utils.ts';
-
-Deno.test('Value is any number from 1 to 100', () => {
-  assertEquals(isNumberFrom1To100('latvia'), false);
-  assertEquals(isNumberFrom1To100(1.5), false);
-  assertEquals(isNumberFrom1To100(Infinity), false);
-  assertEquals(isNumberFrom1To100('Infinity'), false);
-  assertEquals(isNumberFrom1To100('0'), false);
-  assertEquals(isNumberFrom1To100(0), false);
-  assertEquals(isNumberFrom1To100(-1), false);
-  assertEquals(isNumberFrom1To100('-10'), false);
-  assertEquals(isNumberFrom1To100([]), false);
-  assertEquals(isNumberFrom1To100(undefined), false);
-
-  for (let i = 1; i < 100; i++) {
-    assertEquals(isNumberFrom1To100(String(i)), true);
-  }
-
-  assertEquals(isNumberFrom1To100('1e1'), true);
-});
diff --git a/src/utils.ts b/src/utils.ts
index a1c3b1d1..e9213ed1 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -93,17 +93,12 @@ function isURL(value: unknown): boolean {
   return z.string().url().safeParse(value).success;
 }
 
-function isNumberFrom1To100(value: unknown): boolean {
-  return z.coerce.number().int().gte(1).lte(100).safeParse(value).success;
-}
-
 export {
   bech32ToPubkey,
   dedupeEvents,
   eventAge,
   findTag,
   isNostrId,
-  isNumberFrom1To100,
   isURL,
   type Nip05,
   nostrDate,
diff --git a/src/utils/zap-split.ts b/src/utils/zap-split.ts
index 54fe04a5..830c1e7c 100644
--- a/src/utils/zap-split.ts
+++ b/src/utils/zap-split.ts
@@ -1,9 +1,10 @@
-import { Conf } from '@/config.ts';
-import { NSchema as n, NStore } from '@nostrify/nostrify';
-import { isNumberFrom1To100, nostrNow } from '@/utils.ts';
-import { Storages } from '@/storages.ts';
 import { AdminSigner } from '@/signers/AdminSigner.ts';
+import { Conf } from '@/config.ts';
 import { handleEvent } from '@/pipeline.ts';
+import { NSchema as n, NStore } from '@nostrify/nostrify';
+import { nostrNow } from '@/utils.ts';
+import { percentageSchema } from '@/schema.ts';
+import { Storages } from '@/storages.ts';
 
 type Pubkey = string;
 type ExtraMessage = string;
@@ -29,7 +30,7 @@ export async function getZapSplits(store: NStore, pubkey: string): Promise<Ditto
   for (const tag of event.tags) {
     if (
       tag[0] === 'p' && n.id().safeParse(tag[1]).success &&
-      isNumberFrom1To100(tag[2])
+      percentageSchema.safeParse(tag[2]).success
     ) {
       zapSplits[tag[1]] = { amount: Number(tag[2]), message: tag[3] };
     }