-58.26% is the change from 218 to 91
Calculation steps:
[( 91 - 218 ) ÷ 218] x 100 = -58.26%
Formula
Percentage change = [(91 - 218) / 218] x 100
Subtract the new number by the original number
91 - 218 = -127
-127 ÷ 218 = -0.5825688073394495
-0.5825688073394495 x 100 = -58.26%