-25.56% is the change from 266 to 198
Calculation steps:
[( 198 - 266 ) ÷ 266] x 100 = -25.56%
Formula
Percentage change = [(198 - 266) / 266] x 100
Subtract the new number by the original number
198 - 266 = -68
-68 ÷ 266 = -0.2556390977443609
-0.2556390977443609 x 100 = -25.56%