-51.24% is the change from 687 to 335
Calculation steps:
[( 335 - 687 ) ÷ 687] x 100 = -51.24%
Formula
Percentage change = [(335 - 687) / 687] x 100
Subtract the new number by the original number
335 - 687 = -352
-352 ÷ 687 = -0.512372634643377
-0.512372634643377 x 100 = -51.24%