-91.36% is the change from 972 to 84
Calculation steps:
[( 84 - 972 ) ÷ 972] x 100 = -91.36%
Formula
Percentage change = [(84 - 972) / 972] x 100
Subtract the new number by the original number
84 - 972 = -888
-888 ÷ 972 = -0.9135802469135802
-0.9135802469135802 x 100 = -91.36%