-7.78% is the change from 951 to 877
Calculation steps:
[( 877 - 951 ) ÷ 951] x 100 = -7.78%
Formula
Percentage change = [(877 - 951) / 951] x 100
Subtract the new number by the original number
877 - 951 = -74
-74 ÷ 951 = -0.07781282860147214
-0.07781282860147214 x 100 = -7.78%