-56.16% is the change from 958 to 420
Calculation steps:
[( 420 - 958 ) ÷ 958] x 100 = -56.16%
Formula
Percentage change = [(420 - 958) / 958] x 100
Subtract the new number by the original number
420 - 958 = -538
-538 ÷ 958 = -0.5615866388308977
-0.5615866388308977 x 100 = -56.16%