-25% is the change from 972 to 729
Calculation steps:
[( 729 - 972 ) ÷ 972] x 100 = -25%
Formula
Percentage change = [(729 - 972) / 972] x 100
Subtract the new number by the original number
729 - 972 = -243
-243 ÷ 972 = -0.25
-0.25 x 100 = -25%
Example