-41.85% is the change from 877 to 510
Calculation steps:
[( 510 - 877 ) ÷ 877] x 100 = -41.85%
Formula
Percentage change = [(510 - 877) / 877] x 100
Subtract the new number by the original number
510 - 877 = -367
-367 ÷ 877 = -0.4184720638540479
-0.4184720638540479 x 100 = -41.85%