-55.67% is the change from 388 to 172
Calculation steps:
[( 172 - 388 ) ÷ 388] x 100 = -55.67%
Formula
Percentage change = [(172 - 388) / 388] x 100
Subtract the new number by the original number
172 - 388 = -216
-216 ÷ 388 = -0.5567010309278351
-0.5567010309278351 x 100 = -55.67%