-54.6% is the change from 934 to 424
Calculation steps:
[( 424 - 934 ) ÷ 934] x 100 = -54.6%
Formula
Percentage change = [(424 - 934) / 934] x 100
Subtract the new number by the original number
424 - 934 = -510
-510 ÷ 934 = -0.5460385438972163
-0.5460385438972163 x 100 = -54.6%