-63.88% is the change from 490 to 177
Calculation steps:
[( 177 - 490 ) ÷ 490] x 100 = -63.88%
Formula
Percentage change = [(177 - 490) / 490] x 100
Subtract the new number by the original number
177 - 490 = -313
-313 ÷ 490 = -0.6387755102040816
-0.6387755102040816 x 100 = -63.88%