-60.58% is the change from 657 to 259
Calculation steps:
[( 259 - 657 ) ÷ 657] x 100 = -60.58%
Formula
Percentage change = [(259 - 657) / 657] x 100
Subtract the new number by the original number
259 - 657 = -398
-398 ÷ 657 = -0.6057838660578386
-0.6057838660578386 x 100 = -60.58%