-70.18% is the change from 342 to 102
Calculation steps:
[( 102 - 342 ) ÷ 342] x 100 = -70.18%
Formula
Percentage change = [(102 - 342) / 342] x 100
Subtract the new number by the original number
102 - 342 = -240
-240 ÷ 342 = -0.7017543859649122
-0.7017543859649122 x 100 = -70.18%