-34.79% is the change from 687 to 448
Calculation steps:
[( 448 - 687 ) ÷ 687] x 100 = -34.79%
Formula
Percentage change = [(448 - 687) / 687] x 100
Subtract the new number by the original number
448 - 687 = -239
-239 ÷ 687 = -0.34788937409024745
-0.34788937409024745 x 100 = -34.79%
Example