1638% is the change from 50 to 869
Calculation steps:
[( 869 - 50 ) ÷ 50] x 100 = 1638%
Formula
Percentage change = [(869 - 50) / 50] x 100
Subtract the new number by the original number
869 - 50 = 819
819 ÷ 50 = 16.38
16.38 x 100 = 1638%
Example