-64.97% is the change from 394 to 138
Calculation steps:
[( 138 - 394 ) ÷ 394] x 100 = -64.97%
Formula
Percentage change = [(138 - 394) / 394] x 100
Subtract the new number by the original number
138 - 394 = -256
-256 ÷ 394 = -0.649746192893401
-0.649746192893401 x 100 = -64.97%