-85.8% is the change from 972 to 138
Calculation steps:
[( 138 - 972 ) ÷ 972] x 100 = -85.8%
Formula
Percentage change = [(138 - 972) / 972] x 100
Subtract the new number by the original number
138 - 972 = -834
-834 ÷ 972 = -0.8580246913580247
-0.8580246913580247 x 100 = -85.8%