-80.34% is the change from 356 to 70
Calculation steps:
[( 70 - 356 ) ÷ 356] x 100 = -80.34%
Formula
Percentage change = [(70 - 356) / 356] x 100
Subtract the new number by the original number
70 - 356 = -286
-286 ÷ 356 = -0.8033707865168539
-0.8033707865168539 x 100 = -80.34%