1742% is the change from 50 to 921
Calculation steps:
[( 921 - 50 ) ÷ 50] x 100 = 1742%
Formula
Percentage change = [(921 - 50) / 50] x 100
Subtract the new number by the original number
921 - 50 = 871
871 ÷ 50 = 17.42
17.42 x 100 = 1742%
Example