-15.38% is the change from 325 to 275
Calculation steps:
[( 275 - 325 ) ÷ 325] x 100 = -15.38%
Formula
Percentage change = [(275 - 325) / 325] x 100
Subtract the new number by the original number
275 - 325 = -50
-50 ÷ 325 = -0.15384615384615385
-0.15384615384615385 x 100 = -15.38%