45.2% is the change from 531 to 771
Calculation steps:
[( 771 - 531 ) ÷ 531] x 100 = 45.2%
Formula
Percentage change = [(771 - 531) / 531] x 100
Subtract the new number by the original number
771 - 531 = 240
240 ÷ 531 = 0.4519774011299435
0.4519774011299435 x 100 = 45.2%