-14.74% is the change from 970 to 827
Calculation steps:
[( 827 - 970 ) ÷ 970] x 100 = -14.74%
Formula
Percentage change = [(827 - 970) / 970] x 100
Subtract the new number by the original number
827 - 970 = -143
-143 ÷ 970 = -0.14742268041237114
-0.14742268041237114 x 100 = -14.74%