go.charczuk.com@v0.0.0-20240327042549-bc490516bd1a/sdk/mathutil/percent_change.go (about)

     1  /*
     2  
     3  Copyright (c) 2024 - Present. Will Charczuk. All rights reserved.
     4  Use of this source code is governed by a MIT license that can be found in the LICENSE file at the root of the repository.
     5  
     6  */
     7  
     8  package mathutil
     9  
    10  import "math"
    11  
    12  // PercentChange returns the percent change of two floats.
    13  func PercentChange(x1, x2 float64) float64 {
    14  	if x1 == 0 {
    15  		return math.Inf(1)
    16  	}
    17  	return (x2 - x1) / x1
    18  }