137.94% is the change from 398 to 947
Calculation steps:
[( 947 - 398 ) ÷ 398] x 100 = 137.94%
Formula
Percentage change = [(947 - 398) / 398] x 100
Subtract the new number by the original number
947 - 398 = 549
549 ÷ 398 = 1.379396984924623
1.379396984924623 x 100 = 137.94%