-14.82% is the change from 506 to 431
Calculation steps:
[( 431 - 506 ) ÷ 506] x 100 = -14.82%
Formula
Percentage change = [(431 - 506) / 506] x 100
Subtract the new number by the original number
431 - 506 = -75
-75 ÷ 506 = -0.1482213438735178
-0.1482213438735178 x 100 = -14.82%