-13.18% is the change from 493 to 428
Calculation steps:
[( 428 - 493 ) ÷ 493] x 100 = -13.18%
Formula
Percentage change = [(428 - 493) / 493] x 100
Subtract the new number by the original number
428 - 493 = -65
-65 ÷ 493 = -0.13184584178498987
-0.13184584178498987 x 100 = -13.18%