-60.87% is the change from 345 to 135
Calculation steps:
[( 135 - 345 ) ÷ 345] x 100 = -60.87%
Formula
Percentage change = [(135 - 345) / 345] x 100
Subtract the new number by the original number
135 - 345 = -210
-210 ÷ 345 = -0.6086956521739131
-0.6086956521739131 x 100 = -60.87%