-32.24% is the change from 977 to 662
Calculation steps:
[( 662 - 977 ) ÷ 977] x 100 = -32.24%
Formula
Percentage change = [(662 - 977) / 977] x 100
Subtract the new number by the original number
662 - 977 = -315
-315 ÷ 977 = -0.3224155578300921
-0.3224155578300921 x 100 = -32.24%