-52.12% is the change from 449 to 215
Calculation steps:
[( 215 - 449 ) ÷ 449] x 100 = -52.12%
Formula
Percentage change = [(215 - 449) / 449] x 100
Subtract the new number by the original number
215 - 449 = -234
-234 ÷ 449 = -0.5211581291759465
-0.5211581291759465 x 100 = -52.12%