-63.36% is the change from 685 to 251
Calculation steps:
[( 251 - 685 ) ÷ 685] x 100 = -63.36%
Formula
Percentage change = [(251 - 685) / 685] x 100
Subtract the new number by the original number
251 - 685 = -434
-434 ÷ 685 = -0.6335766423357664
-0.6335766423357664 x 100 = -63.36%