-86.11% is the change from 972 to 135
Calculation steps:
[( 135 - 972 ) ÷ 972] x 100 = -86.11%
Formula
Percentage change = [(135 - 972) / 972] x 100
Subtract the new number by the original number
135 - 972 = -837
-837 ÷ 972 = -0.8611111111111112
-0.8611111111111112 x 100 = -86.11%