-47.15% is the change from 755 to 399
Calculation steps:
[( 399 - 755 ) ÷ 755] x 100 = -47.15%
Formula
Percentage change = [(399 - 755) / 755] x 100
Subtract the new number by the original number
399 - 755 = -356
-356 ÷ 755 = -0.47152317880794703
-0.47152317880794703 x 100 = -47.15%