-78.4% is the change from 449 to 97
Calculation steps:
[( 97 - 449 ) ÷ 449] x 100 = -78.4%
Formula
Percentage change = [(97 - 449) / 449] x 100
Subtract the new number by the original number
97 - 449 = -352
-352 ÷ 449 = -0.7839643652561247
-0.7839643652561247 x 100 = -78.4%