-54.98% is the change from 933 to 420
Calculation steps:
[( 420 - 933 ) ÷ 933] x 100 = -54.98%
Formula
Percentage change = [(420 - 933) / 933] x 100
Subtract the new number by the original number
420 - 933 = -513
-513 ÷ 933 = -0.5498392282958199
-0.5498392282958199 x 100 = -54.98%