162.3% is the change from 191 to 501
Calculation steps:
[( 501 - 191 ) ÷ 191] x 100 = 162.3%
Formula
Percentage change = [(501 - 191) / 191] x 100
Subtract the new number by the original number
501 - 191 = 310
310 ÷ 191 = 1.6230366492146597
1.6230366492146597 x 100 = 162.3%