147.7% is the change from 392 to 971
Calculation steps:
[( 971 - 392 ) ÷ 392] x 100 = 147.7%
Formula
Percentage change = [(971 - 392) / 392] x 100
Subtract the new number by the original number
971 - 392 = 579
579 ÷ 392 = 1.4770408163265305
1.4770408163265305 x 100 = 147.7%