-55.21% is the change from 634 to 284
Calculation steps:
[( 284 - 634 ) ÷ 634] x 100 = -55.21%
Formula
Percentage change = [(284 - 634) / 634] x 100
Subtract the new number by the original number
284 - 634 = -350
-350 ÷ 634 = -0.5520504731861199
-0.5520504731861199 x 100 = -55.21%