-75.64% is the change from 353 to 86
Calculation steps:
[( 86 - 353 ) ÷ 353] x 100 = -75.64%
Formula
Percentage change = [(86 - 353) / 353] x 100
Subtract the new number by the original number
86 - 353 = -267
-267 ÷ 353 = -0.7563739376770539
-0.7563739376770539 x 100 = -75.64%