-85.28% is the change from 530 to 78
Calculation steps:
[( 78 - 530 ) ÷ 530] x 100 = -85.28%
Formula
Percentage change = [(78 - 530) / 530] x 100
Subtract the new number by the original number
78 - 530 = -452
-452 ÷ 530 = -0.8528301886792453
-0.8528301886792453 x 100 = -85.28%