-41.31% is the change from 397 to 233
Calculation steps:
[( 233 - 397 ) ÷ 397] x 100 = -41.31%
Formula
Percentage change = [(233 - 397) / 397] x 100
Subtract the new number by the original number
233 - 397 = -164
-164 ÷ 397 = -0.41309823677581864
-0.41309823677581864 x 100 = -41.31%