77.17% is the change from 530 to 939
Calculation steps:
[( 939 - 530 ) ÷ 530] x 100 = 77.17%
Formula
Percentage change = [(939 - 530) / 530] x 100
Subtract the new number by the original number
939 - 530 = 409
409 ÷ 530 = 0.7716981132075472
0.7716981132075472 x 100 = 77.17%