-90.08% is the change from 706 to 70
Calculation steps:
[( 70 - 706 ) ÷ 706] x 100 = -90.08%
Formula
Percentage change = [(70 - 706) / 706] x 100
Subtract the new number by the original number
70 - 706 = -636
-636 ÷ 706 = -0.9008498583569405
-0.9008498583569405 x 100 = -90.08%