-60.58% is the change from 345 to 136
Calculation steps:
[( 136 - 345 ) ÷ 345] x 100 = -60.58%
Formula
Percentage change = [(136 - 345) / 345] x 100
Subtract the new number by the original number
136 - 345 = -209
-209 ÷ 345 = -0.6057971014492753
-0.6057971014492753 x 100 = -60.58%