-99.59% is the change from 972 to 4
Calculation steps:
[( 4 - 972 ) ÷ 972] x 100 = -99.59%
Formula
Percentage change = [(4 - 972) / 972] x 100
Subtract the new number by the original number
4 - 972 = -968
-968 ÷ 972 = -0.9958847736625515
-0.9958847736625515 x 100 = -99.59%