77% is the change from 300 to 531
Calculation steps:
[( 531 - 300 ) ÷ 300] x 100 = 77%
Formula
Percentage change = [(531 - 300) / 300] x 100
Subtract the new number by the original number
531 - 300 = 231
231 ÷ 300 = 0.77
0.77 x 100 = 77%
Example