-47.02% is the change from 755 to 400
Calculation steps:
[( 400 - 755 ) ÷ 755] x 100 = -47.02%
Formula
Percentage change = [(400 - 755) / 755] x 100
Subtract the new number by the original number
400 - 755 = -355
-355 ÷ 755 = -0.47019867549668876
-0.47019867549668876 x 100 = -47.02%