45.01% is the change from 531 to 770
Calculation steps:
[( 770 - 531 ) ÷ 531] x 100 = 45.01%
Formula
Percentage change = [(770 - 531) / 531] x 100
Subtract the new number by the original number
770 - 531 = 239
239 ÷ 531 = 0.4500941619585687
0.4500941619585687 x 100 = 45.01%