-22.8% is the change from 250 to 193
Calculation steps:
[( 193 - 250 ) ÷ 250] x 100 = -22.8%
Formula
Percentage change = [(193 - 250) / 250] x 100
Subtract the new number by the original number
193 - 250 = -57
-57 ÷ 250 = -0.228
-0.228 x 100 = -22.8%