-11.85% is the change from 270 to 238
Calculation steps:
[( 238 - 270 ) ÷ 270] x 100 = -11.85%
Formula
Percentage change = [(238 - 270) / 270] x 100
Subtract the new number by the original number
238 - 270 = -32
-32 ÷ 270 = -0.11851851851851852
-0.11851851851851852 x 100 = -11.85%