77.37% is the change from 517 to 917
Calculation steps:
[( 917 - 517 ) ÷ 517] x 100 = 77.37%
Formula
Percentage change = [(917 - 517) / 517] x 100
Subtract the new number by the original number
917 - 517 = 400
400 ÷ 517 = 0.7736943907156673
0.7736943907156673 x 100 = 77.37%