-34.64% is the change from 612 to 400
Calculation steps:
[( 400 - 612 ) ÷ 612] x 100 = -34.64%
Formula
Percentage change = [(400 - 612) / 612] x 100
Subtract the new number by the original number
400 - 612 = -212
-212 ÷ 612 = -0.3464052287581699
-0.3464052287581699 x 100 = -34.64%