530% is the change from 30 to 189
Calculation steps:
[( 189 - 30 ) ÷ 30] x 100 = 530%
Formula
Percentage change = [(189 - 30) / 30] x 100
Subtract the new number by the original number
189 - 30 = 159
159 ÷ 30 = 5.3
5.3 x 100 = 530%
Example