1642% is the change from 50 to 871
Calculation steps:
[( 871 - 50 ) ÷ 50] x 100 = 1642%
Formula
Percentage change = [(871 - 50) / 50] x 100
Subtract the new number by the original number
871 - 50 = 821
821 ÷ 50 = 16.42
16.42 x 100 = 1642%
Example