619.01% is the change from 121 to 870
Calculation steps:
[( 870 - 121 ) ÷ 121] x 100 = 619.01%
Formula
Percentage change = [(870 - 121) / 121] x 100
Subtract the new number by the original number
870 - 121 = 749
749 ÷ 121 = 6.190082644628099
6.190082644628099 x 100 = 619.01%