-28.5% is the change from 193 to 138
Calculation steps:
[( 138 - 193 ) ÷ 193] x 100 = -28.5%
Formula
Percentage change = [(138 - 193) / 193] x 100
Subtract the new number by the original number
138 - 193 = -55
-55 ÷ 193 = -0.2849740932642487
-0.2849740932642487 x 100 = -28.5%