-85.7% is the change from 972 to 139
Calculation steps:
[( 139 - 972 ) ÷ 972] x 100 = -85.7%
Formula
Percentage change = [(139 - 972) / 972] x 100
Subtract the new number by the original number
139 - 972 = -833
-833 ÷ 972 = -0.8569958847736625
-0.8569958847736625 x 100 = -85.7%