-69.21% is the change from 393 to 121
Calculation steps:
[( 121 - 393 ) ÷ 393] x 100 = -69.21%
Formula
Percentage change = [(121 - 393) / 393] x 100
Subtract the new number by the original number
121 - 393 = -272
-272 ÷ 393 = -0.6921119592875318
-0.6921119592875318 x 100 = -69.21%