451.35% is the change from 148 to 816
Calculation steps:
[( 816 - 148 ) ÷ 148] x 100 = 451.35%
Formula
Percentage change = [(816 - 148) / 148] x 100
Subtract the new number by the original number
816 - 148 = 668
668 ÷ 148 = 4.513513513513513
4.513513513513513 x 100 = 451.35%