-44.47% is the change from 398 to 221
Calculation steps:
[( 221 - 398 ) ÷ 398] x 100 = -44.47%
Formula
Percentage change = [(221 - 398) / 398] x 100
Subtract the new number by the original number
221 - 398 = -177
-177 ÷ 398 = -0.44472361809045224
-0.44472361809045224 x 100 = -44.47%