-20.87% is the change from 436 to 345
Calculation steps:
[( 345 - 436 ) ÷ 436] x 100 = -20.87%
Formula
Percentage change = [(345 - 436) / 436] x 100
Subtract the new number by the original number
345 - 436 = -91
-91 ÷ 436 = -0.20871559633027523
-0.20871559633027523 x 100 = -20.87%