83.88% is the change from 515 to 947
Calculation steps:
[( 947 - 515 ) ÷ 515] x 100 = 83.88%
Formula
Percentage change = [(947 - 515) / 515] x 100
Subtract the new number by the original number
947 - 515 = 432
432 ÷ 515 = 0.8388349514563107
0.8388349514563107 x 100 = 83.88%