-94.38% is the change from 534 to 30
Calculation steps:
[( 30 - 534 ) ÷ 534] x 100 = -94.38%
Formula
Percentage change = [(30 - 534) / 534] x 100
Subtract the new number by the original number
30 - 534 = -504
-504 ÷ 534 = -0.9438202247191011
-0.9438202247191011 x 100 = -94.38%