-86.46% is the change from 997 to 135
Calculation steps:
[( 135 - 997 ) ÷ 997] x 100 = -86.46%
Formula
Percentage change = [(135 - 997) / 997] x 100
Subtract the new number by the original number
135 - 997 = -862
-862 ÷ 997 = -0.8645937813440321
-0.8645937813440321 x 100 = -86.46%