-43.62% is the change from 603 to 340
Calculation steps:
[( 340 - 603 ) ÷ 603] x 100 = -43.62%
Formula
Percentage change = [(340 - 603) / 603] x 100
Subtract the new number by the original number
340 - 603 = -263
-263 ÷ 603 = -0.4361525704809287
-0.4361525704809287 x 100 = -43.62%