1900% is the change from 49 to 980
Calculation steps:
[( 980 - 49 ) ÷ 49] x 100 = 1900%
Formula
Percentage change = [(980 - 49) / 49] x 100
Subtract the new number by the original number
980 - 49 = 931
931 ÷ 49 = 19
19 x 100 = 1900%
Example