-34.64% is the change from 687 to 449
Calculation steps:
[( 449 - 687 ) ÷ 687] x 100 = -34.64%
Formula
Percentage change = [(449 - 687) / 687] x 100
Subtract the new number by the original number
449 - 687 = -238
-238 ÷ 687 = -0.34643377001455605
-0.34643377001455605 x 100 = -34.64%