-19.77% is the change from 354 to 284
Calculation steps:
[( 284 - 354 ) ÷ 354] x 100 = -19.77%
Formula
Percentage change = [(284 - 354) / 354] x 100
Subtract the new number by the original number
284 - 354 = -70
-70 ÷ 354 = -0.1977401129943503
-0.1977401129943503 x 100 = -19.77%