-17.03% is the change from 687 to 570
Calculation steps:
[( 570 - 687 ) ÷ 687] x 100 = -17.03%
Formula
Percentage change = [(570 - 687) / 687] x 100
Subtract the new number by the original number
570 - 687 = -117
-117 ÷ 687 = -0.1703056768558952
-0.1703056768558952 x 100 = -17.03%