-23.37% is the change from 398 to 305
Calculation steps:
[( 305 - 398 ) ÷ 398] x 100 = -23.37%
Formula
Percentage change = [(305 - 398) / 398] x 100
Subtract the new number by the original number
305 - 398 = -93
-93 ÷ 398 = -0.23366834170854273
-0.23366834170854273 x 100 = -23.37%