-78.94% is the change from 432 to 91
Calculation steps:
[( 91 - 432 ) ÷ 432] x 100 = -78.94%
Formula
Percentage change = [(91 - 432) / 432] x 100
Subtract the new number by the original number
91 - 432 = -341
-341 ÷ 432 = -0.7893518518518519
-0.7893518518518519 x 100 = -78.94%