-6.72% is the change from 238 to 222
Calculation steps:
[( 222 - 238 ) ÷ 238] x 100 = -6.72%
Formula
Percentage change = [(222 - 238) / 238] x 100
Subtract the new number by the original number
222 - 238 = -16
-16 ÷ 238 = -0.06722689075630252
-0.06722689075630252 x 100 = -6.72%