-21.05% is the change from 532 to 420
Calculation steps:
[( 420 - 532 ) ÷ 532] x 100 = -21.05%
Formula
Percentage change = [(420 - 532) / 532] x 100
Subtract the new number by the original number
420 - 532 = -112
-112 ÷ 532 = -0.21052631578947367
-0.21052631578947367 x 100 = -21.05%