51% is the change from 300 to 453
Calculation steps:
[( 453 - 300 ) ÷ 300] x 100 = 51%
Formula
Percentage change = [(453 - 300) / 300] x 100
Subtract the new number by the original number
453 - 300 = 153
153 ÷ 300 = 0.51
0.51 x 100 = 51%
Example