67% is the change from 300 to 501
Calculation steps:
[( 501 - 300 ) ÷ 300] x 100 = 67%
Formula
Percentage change = [(501 - 300) / 300] x 100
Subtract the new number by the original number
501 - 300 = 201
201 ÷ 300 = 0.67
0.67 x 100 = 67%
Example