Percentage of upload file in Axios + vue.js

// in Actions: 
uploadFile: ({ state, commit }, { file }) => {
    return new Promise((resolve, reject) => {
      Fetcher({
        url: endpoints.uploadFile,
        method: 'POST',
        headers: {
          'Authorization': `${state.token}`
        },
        onUploadProgress ({ loaded, total }) {
          const uploadProgress = Math.round(loaded / total * 100)
          commit('setPercentage', uploadProgress)
        },
        data: {
          file
        }
      })
        .then((resp) => {
          resolve(resp)
        })
        .catch((err) => {
          console.log('upload error,', err)
          reject(err.response)
        })
    })
  }

// in muttations 
setPercentage (state, num) {
    state.percentage = num
  }
  
  
// in state 
percentage: ''


// in component
computed: {
      percentage () {
        return this.$store.state.percentage
      }
    }