-60.53% is the change from 342 to 135
Calculation steps:
[( 135 - 342 ) ÷ 342] x 100 = -60.53%
Formula
Percentage change = [(135 - 342) / 342] x 100
Subtract the new number by the original number
135 - 342 = -207
-207 ÷ 342 = -0.6052631578947368
-0.6052631578947368 x 100 = -60.53%