-69.53% is the change from 873 to 266
Calculation steps:
[( 266 - 873 ) ÷ 873] x 100 = -69.53%
Formula
Percentage change = [(266 - 873) / 873] x 100
Subtract the new number by the original number
266 - 873 = -607
-607 ÷ 873 = -0.695303550973654
-0.695303550973654 x 100 = -69.53%