-34.26% is the change from 397 to 261
Calculation steps:
[( 261 - 397 ) ÷ 397] x 100 = -34.26%
Formula
Percentage change = [(261 - 397) / 397] x 100
Subtract the new number by the original number
261 - 397 = -136
-136 ÷ 397 = -0.3425692695214106
-0.3425692695214106 x 100 = -34.26%