-32.02% is the change from 456 to 310
Calculation steps:
[( 310 - 456 ) ÷ 456] x 100 = -32.02%
Formula
Percentage change = [(310 - 456) / 456] x 100
Subtract the new number by the original number
310 - 456 = -146
-146 ÷ 456 = -0.3201754385964912
-0.3201754385964912 x 100 = -32.02%