-60.26% is the change from 229 to 91
Calculation steps:
[( 91 - 229 ) ÷ 229] x 100 = -60.26%
Formula
Percentage change = [(91 - 229) / 229] x 100
Subtract the new number by the original number
91 - 229 = -138
-138 ÷ 229 = -0.6026200873362445
-0.6026200873362445 x 100 = -60.26%