147.97% is the change from 394 to 977
Calculation steps:
[( 977 - 394 ) ÷ 394] x 100 = 147.97%
Formula
Percentage change = [(977 - 394) / 394] x 100
Subtract the new number by the original number
977 - 394 = 583
583 ÷ 394 = 1.4796954314720812
1.4796954314720812 x 100 = 147.97%