-97.63% is the change from 972 to 23
Calculation steps:
[( 23 - 972 ) ÷ 972] x 100 = -97.63%
Formula
Percentage change = [(23 - 972) / 972] x 100
Subtract the new number by the original number
23 - 972 = -949
-949 ÷ 972 = -0.9763374485596708
-0.9763374485596708 x 100 = -97.63%