-47.25% is the change from 400 to 211
Calculation steps:
[( 211 - 400 ) ÷ 400] x 100 = -47.25%
Formula
Percentage change = [(211 - 400) / 400] x 100
Subtract the new number by the original number
211 - 400 = -189
-189 ÷ 400 = -0.4725
-0.4725 x 100 = -47.25%