318.35% is the change from 158 to 661
Calculation steps:
[( 661 - 158 ) ÷ 158] x 100 = 318.35%
Formula
Percentage change = [(661 - 158) / 158] x 100
Subtract the new number by the original number
661 - 158 = 503
503 ÷ 158 = 3.1835443037974684
3.1835443037974684 x 100 = 318.35%