-52.11% is the change from 687 to 329
Calculation steps:
[( 329 - 687 ) ÷ 687] x 100 = -52.11%
Formula
Percentage change = [(329 - 687) / 687] x 100
Subtract the new number by the original number
329 - 687 = -358
-358 ÷ 687 = -0.5211062590975255
-0.5211062590975255 x 100 = -52.11%