-4.62% is the change from 325 to 310
Calculation steps:
[( 310 - 325 ) ÷ 325] x 100 = -4.62%
Formula
Percentage change = [(310 - 325) / 325] x 100
Subtract the new number by the original number
310 - 325 = -15
-15 ÷ 325 = -0.046153846153846156
-0.046153846153846156 x 100 = -4.62%