-59.26% is the change from 135 to 55
Calculation steps:
[( 55 - 135 ) ÷ 135] x 100 = -59.26%
Formula
Percentage change = [(55 - 135) / 135] x 100
Subtract the new number by the original number
55 - 135 = -80
-80 ÷ 135 = -0.5925925925925926
-0.5925925925925926 x 100 = -59.26%