77.76% is the change from 517 to 919
Calculation steps:
[( 919 - 517 ) ÷ 517] x 100 = 77.76%
Formula
Percentage change = [(919 - 517) / 517] x 100
Subtract the new number by the original number
919 - 517 = 402
402 ÷ 517 = 0.7775628626692457
0.7775628626692457 x 100 = 77.76%