-51.83% is the change from 355 to 171
Calculation steps:
[( 171 - 355 ) ÷ 355] x 100 = -51.83%
Formula
Percentage change = [(171 - 355) / 355] x 100
Subtract the new number by the original number
171 - 355 = -184
-184 ÷ 355 = -0.5183098591549296
-0.5183098591549296 x 100 = -51.83%