-59.65% is the change from 342 to 138
Calculation steps:
[( 138 - 342 ) ÷ 342] x 100 = -59.65%
Formula
Percentage change = [(138 - 342) / 342] x 100
Subtract the new number by the original number
138 - 342 = -204
-204 ÷ 342 = -0.5964912280701754
-0.5964912280701754 x 100 = -59.65%