-38.46% is the change from 130 to 80
Calculation steps:
[( 80 - 130 ) ÷ 130] x 100 = -38.46%
Formula
Percentage change = [(80 - 130) / 130] x 100
Subtract the new number by the original number
80 - 130 = -50
-50 ÷ 130 = -0.38461538461538464
-0.38461538461538464 x 100 = -38.46%