-21.48% is the change from 447 to 351
Calculation steps:
[( 351 - 447 ) ÷ 447] x 100 = -21.48%
Formula
Percentage change = [(351 - 447) / 447] x 100
Subtract the new number by the original number
351 - 447 = -96
-96 ÷ 447 = -0.21476510067114093
-0.21476510067114093 x 100 = -21.48%