-22% is the change from 250 to 195
Calculation steps:
[( 195 - 250 ) ÷ 250] x 100 = -22%
Formula
Percentage change = [(195 - 250) / 250] x 100
Subtract the new number by the original number
195 - 250 = -55
-55 ÷ 250 = -0.22
-0.22 x 100 = -22%
Example