-42.54% is the change from 945 to 543
Calculation steps:
[( 543 - 945 ) ÷ 945] x 100 = -42.54%
Formula
Percentage change = [(543 - 945) / 945] x 100
Subtract the new number by the original number
543 - 945 = -402
-402 ÷ 945 = -0.4253968253968254
-0.4253968253968254 x 100 = -42.54%