-42.5% is the change from 880 to 506
Calculation steps:
[( 506 - 880 ) ÷ 880] x 100 = -42.5%
Formula
Percentage change = [(506 - 880) / 880] x 100
Subtract the new number by the original number
506 - 880 = -374
-374 ÷ 880 = -0.425
-0.425 x 100 = -42.5%