-45.43% is the change from 449 to 245
Calculation steps:
[( 245 - 449 ) ÷ 449] x 100 = -45.43%
Formula
Percentage change = [(245 - 449) / 449] x 100
Subtract the new number by the original number
245 - 449 = -204
-204 ÷ 449 = -0.45434298440979953
-0.45434298440979953 x 100 = -45.43%