-81.84% is the change from 347 to 63
Calculation steps:
[( 63 - 347 ) ÷ 347] x 100 = -81.84%
Formula
Percentage change = [(63 - 347) / 347] x 100
Subtract the new number by the original number
63 - 347 = -284
-284 ÷ 347 = -0.8184438040345822
-0.8184438040345822 x 100 = -81.84%