770.37% is the change from 81 to 705
Calculation steps:
[( 705 - 81 ) ÷ 81] x 100 = 770.37%
Formula
Percentage change = [(705 - 81) / 81] x 100
Subtract the new number by the original number
705 - 81 = 624
624 ÷ 81 = 7.703703703703703
7.703703703703703 x 100 = 770.37%