-30.69% is the change from 743 to 515
Calculation steps:
[( 515 - 743 ) ÷ 743] x 100 = -30.69%
Formula
Percentage change = [(515 - 743) / 743] x 100
Subtract the new number by the original number
515 - 743 = -228
-228 ÷ 743 = -0.30686406460296095
-0.30686406460296095 x 100 = -30.69%