-11.94% is the change from 687 to 605
Calculation steps:
[( 605 - 687 ) ÷ 687] x 100 = -11.94%
Formula
Percentage change = [(605 - 687) / 687] x 100
Subtract the new number by the original number
605 - 687 = -82
-82 ÷ 687 = -0.11935953420669577
-0.11935953420669577 x 100 = -11.94%