540% is the change from 30 to 192
Calculation steps:
[( 192 - 30 ) ÷ 30] x 100 = 540%
Formula
Percentage change = [(192 - 30) / 30] x 100
Subtract the new number by the original number
192 - 30 = 162
162 ÷ 30 = 5.4
5.4 x 100 = 540%
Example