39.24% is the change from 553 to 770
Calculation steps:
[( 770 - 553 ) ÷ 553] x 100 = 39.24%
Formula
Percentage change = [(770 - 553) / 553] x 100
Subtract the new number by the original number
770 - 553 = 217
217 ÷ 553 = 0.3924050632911392
0.3924050632911392 x 100 = 39.24%