-4.34% is the change from 530 to 507
Calculation steps:
[( 507 - 530 ) ÷ 530] x 100 = -4.34%
Formula
Percentage change = [(507 - 530) / 530] x 100
Subtract the new number by the original number
507 - 530 = -23
-23 ÷ 530 = -0.04339622641509434
-0.04339622641509434 x 100 = -4.34%