-85.92% is the change from 497 to 70
Calculation steps:
[( 70 - 497 ) ÷ 497] x 100 = -85.92%
Formula
Percentage change = [(70 - 497) / 497] x 100
Subtract the new number by the original number
70 - 497 = -427
-427 ÷ 497 = -0.8591549295774648
-0.8591549295774648 x 100 = -85.92%