-19.75% is the change from 238 to 191
Calculation steps:
[( 191 - 238 ) ÷ 238] x 100 = -19.75%
Formula
Percentage change = [(191 - 238) / 238] x 100
Subtract the new number by the original number
191 - 238 = -47
-47 ÷ 238 = -0.19747899159663865
-0.19747899159663865 x 100 = -19.75%