1437.21% is the change from 43 to 661
Calculation steps:
[( 661 - 43 ) ÷ 43] x 100 = 1437.21%
Formula
Percentage change = [(661 - 43) / 43] x 100
Subtract the new number by the original number
661 - 43 = 618
618 ÷ 43 = 14.372093023255815
14.372093023255815 x 100 = 1437.21%