137.34% is the change from 399 to 947
Calculation steps:
[( 947 - 399 ) ÷ 399] x 100 = 137.34%
Formula
Percentage change = [(947 - 399) / 399] x 100
Subtract the new number by the original number
947 - 399 = 548
548 ÷ 399 = 1.3734335839598997
1.3734335839598997 x 100 = 137.34%