-56.89% is the change from 900 to 388
Calculation steps:
[( 388 - 900 ) ÷ 900] x 100 = -56.89%
Formula
Percentage change = [(388 - 900) / 900] x 100
Subtract the new number by the original number
388 - 900 = -512
-512 ÷ 900 = -0.5688888888888889
-0.5688888888888889 x 100 = -56.89%