990% is the change from 70 to 763
Calculation steps:
[( 763 - 70 ) ÷ 70] x 100 = 990%
Formula
Percentage change = [(763 - 70) / 70] x 100
Subtract the new number by the original number
763 - 70 = 693
693 ÷ 70 = 9.9
9.9 x 100 = 990%
Example