-20.23% is the change from 687 to 548
Calculation steps:
[( 548 - 687 ) ÷ 687] x 100 = -20.23%
Formula
Percentage change = [(548 - 687) / 687] x 100
Subtract the new number by the original number
548 - 687 = -139
-139 ÷ 687 = -0.20232896652110627
-0.20232896652110627 x 100 = -20.23%