-96.91% is the change from 972 to 30
Calculation steps:
[( 30 - 972 ) ÷ 972] x 100 = -96.91%
Formula
Percentage change = [(30 - 972) / 972] x 100
Subtract the new number by the original number
30 - 972 = -942
-942 ÷ 972 = -0.9691358024691358
-0.9691358024691358 x 100 = -96.91%