1605.88% is the change from 51 to 870
Calculation steps:
[( 870 - 51 ) ÷ 51] x 100 = 1605.88%
Formula
Percentage change = [(870 - 51) / 51] x 100
Subtract the new number by the original number
870 - 51 = 819
819 ÷ 51 = 16.058823529411764
16.058823529411764 x 100 = 1605.88%