-91.05% is the change from 972 to 87
Calculation steps:
[( 87 - 972 ) ÷ 972] x 100 = -91.05%
Formula
Percentage change = [(87 - 972) / 972] x 100
Subtract the new number by the original number
87 - 972 = -885
-885 ÷ 972 = -0.9104938271604939
-0.9104938271604939 x 100 = -91.05%