-32.38% is the change from 664 to 449
Calculation steps:
[( 449 - 664 ) ÷ 664] x 100 = -32.38%
Formula
Percentage change = [(449 - 664) / 664] x 100
Subtract the new number by the original number
449 - 664 = -215
-215 ÷ 664 = -0.32379518072289154
-0.32379518072289154 x 100 = -32.38%