-21.84% is the change from 435 to 340
Calculation steps:
[( 340 - 435 ) ÷ 435] x 100 = -21.84%
Formula
Percentage change = [(340 - 435) / 435] x 100
Subtract the new number by the original number
340 - 435 = -95
-95 ÷ 435 = -0.21839080459770116
-0.21839080459770116 x 100 = -21.84%