-31.68% is the change from 745 to 509
Calculation steps:
[( 509 - 745 ) ÷ 745] x 100 = -31.68%
Formula
Percentage change = [(509 - 745) / 745] x 100
Subtract the new number by the original number
509 - 745 = -236
-236 ÷ 745 = -0.3167785234899329
-0.3167785234899329 x 100 = -31.68%