-11.5% is the change from 452 to 400
Calculation steps:
[( 400 - 452 ) ÷ 452] x 100 = -11.5%
Formula
Percentage change = [(400 - 452) / 452] x 100
Subtract the new number by the original number
400 - 452 = -52
-52 ÷ 452 = -0.11504424778761062
-0.11504424778761062 x 100 = -11.5%