-28.2% is the change from 266 to 191
Calculation steps:
[( 191 - 266 ) ÷ 266] x 100 = -28.2%
Formula
Percentage change = [(191 - 266) / 266] x 100
Subtract the new number by the original number
191 - 266 = -75
-75 ÷ 266 = -0.2819548872180451
-0.2819548872180451 x 100 = -28.2%