-88.98% is the change from 635 to 70
Calculation steps:
[( 70 - 635 ) ÷ 635] x 100 = -88.98%
Formula
Percentage change = [(70 - 635) / 635] x 100
Subtract the new number by the original number
70 - 635 = -565
-565 ÷ 635 = -0.889763779527559
-0.889763779527559 x 100 = -88.98%