-40.05% is the change from 397 to 238
Calculation steps:
[( 238 - 397 ) ÷ 397] x 100 = -40.05%
Formula
Percentage change = [(238 - 397) / 397] x 100
Subtract the new number by the original number
238 - 397 = -159
-159 ÷ 397 = -0.4005037783375315
-0.4005037783375315 x 100 = -40.05%