50.94% is the change from 530 to 800
Calculation steps:
[( 800 - 530 ) ÷ 530] x 100 = 50.94%
Formula
Percentage change = [(800 - 530) / 530] x 100
Subtract the new number by the original number
800 - 530 = 270
270 ÷ 530 = 0.5094339622641509
0.5094339622641509 x 100 = 50.94%