1114.29% is the change from 70 to 850
Calculation steps:
[( 850 - 70 ) ÷ 70] x 100 = 1114.29%
Formula
Percentage change = [(850 - 70) / 70] x 100
Subtract the new number by the original number
850 - 70 = 780
780 ÷ 70 = 11.142857142857142
11.142857142857142 x 100 = 1114.29%