-72.49% is the change from 647 to 178
Calculation steps:
[( 178 - 647 ) ÷ 647] x 100 = -72.49%
Formula
Percentage change = [(178 - 647) / 647] x 100
Subtract the new number by the original number
178 - 647 = -469
-469 ÷ 647 = -0.7248840803709428
-0.7248840803709428 x 100 = -72.49%