-20.58% is the change from 243 to 193
Calculation steps:
[( 193 - 243 ) ÷ 243] x 100 = -20.58%
Formula
Percentage change = [(193 - 243) / 243] x 100
Subtract the new number by the original number
193 - 243 = -50
-50 ÷ 243 = -0.205761316872428
-0.205761316872428 x 100 = -20.58%