-95.38% is the change from 325 to 15
Calculation steps:
[( 15 - 325 ) ÷ 325] x 100 = -95.38%
Formula
Percentage change = [(15 - 325) / 325] x 100
Subtract the new number by the original number
15 - 325 = -310
-310 ÷ 325 = -0.9538461538461539
-0.9538461538461539 x 100 = -95.38%