48.94% is the change from 517 to 770
Calculation steps:
[( 770 - 517 ) ÷ 517] x 100 = 48.94%
Formula
Percentage change = [(770 - 517) / 517] x 100
Subtract the new number by the original number
770 - 517 = 253
253 ÷ 517 = 0.48936170212765956
0.48936170212765956 x 100 = 48.94%