-36.81% is the change from 633 to 400
Calculation steps:
[( 400 - 633 ) ÷ 633] x 100 = -36.81%
Formula
Percentage change = [(400 - 633) / 633] x 100
Subtract the new number by the original number
400 - 633 = -233
-233 ÷ 633 = -0.36808846761453395
-0.36808846761453395 x 100 = -36.81%