-81.08% is the change from 370 to 70
Calculation steps:
[( 70 - 370 ) ÷ 370] x 100 = -81.08%
Formula
Percentage change = [(70 - 370) / 370] x 100
Subtract the new number by the original number
70 - 370 = -300
-300 ÷ 370 = -0.8108108108108109
-0.8108108108108109 x 100 = -81.08%