-21.05% is the change from 437 to 345
Calculation steps:
[( 345 - 437 ) ÷ 437] x 100 = -21.05%
Formula
Percentage change = [(345 - 437) / 437] x 100
Subtract the new number by the original number
345 - 437 = -92
-92 ÷ 437 = -0.21052631578947367
-0.21052631578947367 x 100 = -21.05%