-65.99% is the change from 397 to 135
Calculation steps:
[( 135 - 397 ) ÷ 397] x 100 = -65.99%
Formula
Percentage change = [(135 - 397) / 397] x 100
Subtract the new number by the original number
135 - 397 = -262
-262 ÷ 397 = -0.6599496221662469
-0.6599496221662469 x 100 = -65.99%