1 0.40-0.24/0.40x100%=40%
2 1x0.8-0.4x0.4x3.14/1x0.8= 38%
3 1x1.25-1/1x1.25x100%=20%
4 40/50x100%=80%
50-40/40x100%=25%
50-40/50x100%=20%
1 0.40-0.24/0.40x100%=40%
2 1x0.8-0.4x0.4x3.14/1x0.8= 38%
3 1x1.25-1/1x1.25x100%=20%
4 40/50x100%=80%
50-40/40x100%=25%
50-40/50x100%=20%