-21.8% is the change from 266 to 208
Calculation steps:
[( 208 - 266 ) ÷ 266] x 100 = -21.8%
Formula
Percentage change = [(208 - 266) / 266] x 100
Subtract the new number by the original number
208 - 266 = -58
-58 ÷ 266 = -0.21804511278195488
-0.21804511278195488 x 100 = -21.8%