-86.49% is the change from 370 to 50
Calculation steps:
[( 50 - 370 ) ÷ 370] x 100 = -86.49%
Formula
Percentage change = [(50 - 370) / 370] x 100
Subtract the new number by the original number
50 - 370 = -320
-320 ÷ 370 = -0.8648648648648649
-0.8648648648648649 x 100 = -86.49%