148.5% is the change from 400 to 994
Calculation steps:
[( 994 - 400 ) ÷ 400] x 100 = 148.5%
Formula
Percentage change = [(994 - 400) / 400] x 100
Subtract the new number by the original number
994 - 400 = 594
594 ÷ 400 = 1.485
1.485 x 100 = 148.5%
Example