-66.11% is the change from 838 to 284
Calculation steps:
[( 284 - 838 ) ÷ 838] x 100 = -66.11%
Formula
Percentage change = [(284 - 838) / 838] x 100
Subtract the new number by the original number
284 - 838 = -554
-554 ÷ 838 = -0.6610978520286396
-0.6610978520286396 x 100 = -66.11%