-61.9% is the change from 685 to 261
Calculation steps:
[( 261 - 685 ) ÷ 685] x 100 = -61.9%
Formula
Percentage change = [(261 - 685) / 685] x 100
Subtract the new number by the original number
261 - 685 = -424
-424 ÷ 685 = -0.618978102189781
-0.618978102189781 x 100 = -61.9%