-16.98% is the change from 530 to 440
Calculation steps:
[( 440 - 530 ) ÷ 530] x 100 = -16.98%
Formula
Percentage change = [(440 - 530) / 530] x 100
Subtract the new number by the original number
440 - 530 = -90
-90 ÷ 530 = -0.16981132075471697
-0.16981132075471697 x 100 = -16.98%