-86.19% is the change from 970 to 134
Calculation steps:
[( 134 - 970 ) ÷ 970] x 100 = -86.19%
Formula
Percentage change = [(134 - 970) / 970] x 100
Subtract the new number by the original number
134 - 970 = -836
-836 ÷ 970 = -0.8618556701030928
-0.8618556701030928 x 100 = -86.19%