-90.4% is the change from 948 to 91
Calculation steps:
[( 91 - 948 ) ÷ 948] x 100 = -90.4%
Formula
Percentage change = [(91 - 948) / 948] x 100
Subtract the new number by the original number
91 - 948 = -857
-857 ÷ 948 = -0.9040084388185654
-0.9040084388185654 x 100 = -90.4%