-70.63% is the change from 647 to 190
Calculation steps:
[( 190 - 647 ) ÷ 647] x 100 = -70.63%
Formula
Percentage change = [(190 - 647) / 647] x 100
Subtract the new number by the original number
190 - 647 = -457
-457 ÷ 647 = -0.7063369397217929
-0.7063369397217929 x 100 = -70.63%