-4.21% is the change from 95 to 91
Calculation steps:
[( 91 - 95 ) ÷ 95] x 100 = -4.21%
Formula
Percentage change = [(91 - 95) / 95] x 100
Subtract the new number by the original number
91 - 95 = -4
-4 ÷ 95 = -0.042105263157894736
-0.042105263157894736 x 100 = -4.21%