-90.66% is the change from 974 to 91
Calculation steps:
[( 91 - 974 ) ÷ 974] x 100 = -90.66%
Formula
Percentage change = [(91 - 974) / 974] x 100
Subtract the new number by the original number
91 - 974 = -883
-883 ÷ 974 = -0.9065708418891171
-0.9065708418891171 x 100 = -90.66%