-40.76% is the change from 449 to 266
Calculation steps:
[( 266 - 449 ) ÷ 449] x 100 = -40.76%
Formula
Percentage change = [(266 - 449) / 449] x 100
Subtract the new number by the original number
266 - 449 = -183
-183 ÷ 449 = -0.40757238307349664
-0.40757238307349664 x 100 = -40.76%