-42.2% is the change from 917 to 530
Calculation steps:
[( 530 - 917 ) ÷ 917] x 100 = -42.2%
Formula
Percentage change = [(530 - 917) / 917] x 100
Subtract the new number by the original number
530 - 917 = -387
-387 ÷ 917 = -0.42202835332606325
-0.42202835332606325 x 100 = -42.2%