-73.56% is the change from 972 to 257
Calculation steps:
[( 257 - 972 ) ÷ 972] x 100 = -73.56%
Formula
Percentage change = [(257 - 972) / 972] x 100
Subtract the new number by the original number
257 - 972 = -715
-715 ÷ 972 = -0.73559670781893
-0.73559670781893 x 100 = -73.56%