-56.45% is the change from 636 to 277
Calculation steps:
[( 277 - 636 ) ÷ 636] x 100 = -56.45%
Formula
Percentage change = [(277 - 636) / 636] x 100
Subtract the new number by the original number
277 - 636 = -359
-359 ÷ 636 = -0.5644654088050315
-0.5644654088050315 x 100 = -56.45%