-83.79% is the change from 975 to 158
Calculation steps:
[( 158 - 975 ) ÷ 975] x 100 = -83.79%
Formula
Percentage change = [(158 - 975) / 975] x 100
Subtract the new number by the original number
158 - 975 = -817
-817 ÷ 975 = -0.837948717948718
-0.837948717948718 x 100 = -83.79%