-49.21% is the change from 764 to 388
Calculation steps:
[( 388 - 764 ) ÷ 764] x 100 = -49.21%
Formula
Percentage change = [(388 - 764) / 764] x 100
Subtract the new number by the original number
388 - 764 = -376
-376 ÷ 764 = -0.49214659685863876
-0.49214659685863876 x 100 = -49.21%