-45.39% is the change from 932 to 509
Calculation steps:
[( 509 - 932 ) ÷ 932] x 100 = -45.39%
Formula
Percentage change = [(509 - 932) / 932] x 100
Subtract the new number by the original number
509 - 932 = -423
-423 ÷ 932 = -0.453862660944206
-0.453862660944206 x 100 = -45.39%