83.17% is the change from 517 to 947
Calculation steps:
[( 947 - 517 ) ÷ 517] x 100 = 83.17%
Formula
Percentage change = [(947 - 517) / 517] x 100
Subtract the new number by the original number
947 - 517 = 430
430 ÷ 517 = 0.8317214700193424
0.8317214700193424 x 100 = 83.17%