-71.36% is the change from 447 to 128
Calculation steps:
[( 128 - 447 ) ÷ 447] x 100 = -71.36%
Formula
Percentage change = [(128 - 447) / 447] x 100
Subtract the new number by the original number
128 - 447 = -319
-319 ÷ 447 = -0.7136465324384788
-0.7136465324384788 x 100 = -71.36%