-64.47% is the change from 501 to 178
Calculation steps:
[( 178 - 501 ) ÷ 501] x 100 = -64.47%
Formula
Percentage change = [(178 - 501) / 501] x 100
Subtract the new number by the original number
178 - 501 = -323
-323 ÷ 501 = -0.6447105788423154
-0.6447105788423154 x 100 = -64.47%