-21.71% is the change from 304 to 238
Calculation steps:
[( 238 - 304 ) ÷ 304] x 100 = -21.71%
Formula
Percentage change = [(238 - 304) / 304] x 100
Subtract the new number by the original number
238 - 304 = -66
-66 ÷ 304 = -0.21710526315789475
-0.21710526315789475 x 100 = -21.71%