-69.87% is the change from 302 to 91
Calculation steps:
[( 91 - 302 ) ÷ 302] x 100 = -69.87%
Formula
Percentage change = [(91 - 302) / 302] x 100
Subtract the new number by the original number
91 - 302 = -211
-211 ÷ 302 = -0.6986754966887417
-0.6986754966887417 x 100 = -69.87%