142.82% is the change from 390 to 947
Calculation steps:
[( 947 - 390 ) ÷ 390] x 100 = 142.82%
Formula
Percentage change = [(947 - 390) / 390] x 100
Subtract the new number by the original number
947 - 390 = 557
557 ÷ 390 = 1.4282051282051282
1.4282051282051282 x 100 = 142.82%