-85.88% is the change from 970 to 137
Calculation steps:
[( 137 - 970 ) ÷ 970] x 100 = -85.88%
Formula
Percentage change = [(137 - 970) / 970] x 100
Subtract the new number by the original number
137 - 970 = -833
-833 ÷ 970 = -0.8587628865979381
-0.8587628865979381 x 100 = -85.88%